ABSTRACT
HIGH LATITUDE IONOSPHERIC SCINTILLATION CHARACTERIZATION
by Yu Jiao
This thesis presents statistical analysis of arctic auroral oval ionospheric scintillation
events during the current solar maximum based on high-rate GPS data collected in
Gakona, Alaska from August 2010 to March 2013. The objective is to better understand
the climatology and morphology of ionospheric scintillation in high latitude regions. Two
sets of scintillation event filters, multipath identification procedures, and other processes
are applied to exclude non-scintillation related signal intensity and phase fluctuation and
to extract scintillation events from over 657 days of available data. A total of about 5800
and 3000 scintillation events were identified after applying the low and high thresholds
respectively, most of which are phase scintillations. Based on the occurrence time, signal
direction of arrival, intensity, and duration of these scintillation events and the solar and
geomagnetic activities associated with these events, diurnal, seasonal, spatial, and solar
activity dependencies are derived and presented in the thesis. The characterization of
high latitude scintillation will provide insights into the mechanisms responsible for the
generation of the scintillation, lead to a better understanding of the solar-terrestrial
atmospheric relationships, and help development of robust GNSS receivers that can
withstand scintillation effects.
HIGH LATITUDE IONOSPHERIC SCINTILLATION CHARACTERIZATION
A Thesis
Submitted to the
Faculty of Miami University
in partial fulfillment of
the requirements for the degree of
Master of Science
Department of Electrical & Computer Engineering
by
Yu Jiao
Miami University
Oxford, Ohio
2013
Advisor_____________________
Dr. Yu Morton
Reader______________________
Dr. Qihou Zhou
Reader______________________
Dr. Dmitriy Garmatyuk
Reader______________________
Dr. Wouter Pelgrum
Table of Contents Table of Contents ................................................................................................................ ii List of Tables ..................................................................................................................... iv List of Figures ..................................................................................................................... v List of Abbreviations ....................................................................................................... viii Acknowledgements ............................................................................................................ ix Chapter 1 ............................................................................................................................. 1 Introduction and Background ............................................................................................. 1 1.1 Ionospheric Scintillation Phenomena ................................................................... 1 1.2 Geomagnetic Field and Ionosphere Scintillation .................................................. 2 1.3 Ionospheric Scintillation Indices........................................................................... 3 1.4 High-Latitude Scintillation and Impact on Global Positioning System (GPS)..... 4 1.5 Previous Researches on Scintillation Characterization......................................... 6 1.6 Contributions of Thesis Research ......................................................................... 8 1.7 Overview ............................................................................................................... 8 Chapter 2 ............................................................................................................................. 9 System and Methodology ................................................................................................... 9 2.1 Data Collection System Setup .............................................................................. 9 2.2 Scintillation Thresholds and Example ................................................................ 10 2.3 Non-Scintillation Events Exclusion .................................................................... 13 2.3.1 Multipath ...................................................................................................... 13 2.3.2 Cycle Slips and Loss of Lock ...................................................................... 15 2.3.3 Interference .................................................................................................. 16 2.3.4 Other Non-Scintillation Events .................................................................... 18 Chapter 3 ........................................................................................................................... 19 Scintillation Characterization on Different Thresholds .................................................... 19 3.1 Effective Data ..................................................................................................... 19 3.2 S4 and σφ Distributions ....................................................................................... 20 3.3 Event Duration Distributions .............................................................................. 22 3.4 Event Temporal and Diurnal Dependency.......................................................... 24 ii
3.5 Event Spatial Distributions ................................................................................. 26 3.6 Percentage of SVs experiencing simultaneous scintillation ............................... 27 3.7 Seasonal Distributions ........................................................................................ 28 Chapter 4 ........................................................................................................................... 32 Scintillation Characterization and Detrending Filter Cutoff Frequency ........................... 32 4.1 Maxσφ Index Distributions ................................................................................ 32 4.2 L2 P(Y) Tracking Performance .......................................................................... 34 4.3 Event Duration Distributions .............................................................................. 35 4.4 Event Temporal and Diurnal Dependency.......................................................... 36 4.5 Seasonal Distributions ........................................................................................ 37 Chapter 5 ........................................................................................................................... 39 Ionospheric Scintillation and Geomagnetic Field Activity............................................... 39 Chapter 6 ........................................................................................................................... 42 Conclusions ....................................................................................................................... 42 Bibliography ..................................................................................................................... 44 Appendix ........................................................................................................................... 52 A. Scintillation Characterization Monthly Distributions ......................................... 52 B. Scintillation Event List (high thresholds & 0.1Hz cutoff) .................................. 54 iii
List of Tables Table 3. 1 Number and percentage of days of effective data........................................... 19 Table 3. 2 AJ receiver corresponding corrected geomagnetic coordinates and magnetic
local time ...................................................................................................................... 25
Table B. 1 Scintillation event list based on the high thresholds and 0.1 Hz cutoff
frequency ...................................................................................................................... 54 iv
List of Figures Figure 1. 1 Ionosphere scintillation data collection sites at high latitude and equatorial
locations ......................................................................................................................... 2 Figure 1. 2 Components of geomagnetic field ................................................................... 2 Figure 2. 1 Receiver position on map ................................................................................ 9 Figure 2. 2 Experiment setup at HAARP, AK before August 2012 .................................. 9 Figure 2. 3 Experiment setup at HAARP, AK since August 2012 .................................. 10 Figure 2. 4 Example of strong ionospheric scintillation event on May 7 2011 ............... 12 Figure 2. 5 S4 and σφ for PRN 27 from 02/27-03/02/2011 ............................................... 14 Figure 2. 6 Interference example on March 7 2013 starting at 22:00:00 UTC with sky
plot................................................................................................................................ 17 Figure 3. 1 Max S4 index distribution for amplitude scintillation events ........................ 21 Figure 3. 2 Maxσφ index distribution for phase scintillation events ................................ 21 Figure 3. 3 Duration distributions for all scintillation events (a)(d), amplitude
scintillation (b)(e) and phase scintillation (c)(f) under different thresholds ................ 22 Figure 3. 4 Event duration vs. maximum and average S4 and σφ values based on
amplitude and phase scintillation events extracted using the high thresholds ............. 23 Figure 3. 5 Overall hourly event occurrence probability vs. UTC (a)(d), hours with
respect to the middle point between sunset and sunrise (b)(e), magnetic local time (c)(f)
under different thresholds ............................................................................................ 25 Figure 3. 6 Scintillation spatial occurrence for all scintillation events (a)(d), amplitude
scintillation (b)(e) and phase scintillation (c)(f) under different thresholds (grid
number: 120x120). ....................................................................................................... 26 Figure 3. 7 24-hour SV path ............................................................................................ 27 Figure 3. 8 Magnetic field variation, and number and percentage of satellites
experiencing scintillation simultaneously on July 15 2012 based on the lower
thresholds. Elevation mask is 30 degrees. .................................................................... 28 v
Figure 3. 9 Seasonal average maxS4 values for amplitude scintillation events (a)(c) and
average maxσφ values for phase scintillation events (b)(d) under different thresholds.29 Figure 3. 10 Seasonal average event duration histograms of both types of scintillation,
amplitude scintillation and phase scintillation under different thresholds. .................. 30 Figure 3. 11 Seasonal average event number per day for phase scintillation events,
concurrent amplitude and phase scintillation events and amplitude scintillation events
under different thresholds. ........................................................................................... 31 Figure 4. 1 Max σφ index distribution comparison between thresholds and cutoff
frequencies. .................................................................................................................. 33 Figure 4. 2 σφ index value comparison between 0.1Hz and 0.05Hz cutoff frequency .... 33 Figure 4. 3 Probability of loss-of-lock/cycle slip on L2P(Y) during phase scintillation
observed on L1CA with different cutoff frequencies on AJ receiver. ......................... 34 Figure 4. 4 Phase scintillation event duration comparison between different thresholds
and cutoff frequencies .................................................................................................. 36 Figure 4. 5 Phase scintillation occurrence probability with 15º threshold and 0.05Hz
cutoff frequency ........................................................................................................... 36 Figure 4. 6 Seasonal average maximum σφ values for phase scintillation events with
different thresholds and cutoff frequencies .................................................................. 37 Figure 4. 7 Seasonal average event duration histograms of phase scintillation with
different thresholds and cutoff frequencies .................................................................. 38 Figure 4. 8 Seasonal average phase scintillation event number per day with different
thresholds and cutoff frequencies................................................................................. 38 Figure 5. 1 Correlation between geomagnetic field component deviations and average S4
index over satellites observed within magnetic zenith (integrate interval = 60 min). . 40 Figure 5. 2 Correlation between geomagnetic field component deviations and average σφ
index over satellites observed within magnetic zenith (integrate interval = 60 min). . 40 Figure 5. 3 Marginal max σφ occurrence probability on variations in geomagnetic field
amplitude. ..................................................................................................................... 41 vi
Figure A. 1 Monthly average max S4 and max σφ ............................................................ 52 Figure A. 2 Monthly average event duration ................................................................... 52 Figure A. 3 Monthly average event number per day ....................................................... 53 vii
List of Abbreviations ASF
Alaska Satellite Facility
CGM
Corrected Geomagnetic Coordinates
DGPS
Differential Global Positioning System
GDOP
Geometric Dilution of Precision
GISTM
GPS Ionospheric Scintillation and TEC Monitors
GNSS
Global Navigation Satellite System
GPS
Global Positioning System
HAARP
High Frequency Active Auroral Research Program
IMF
Interplanetary Magnetic Field
LT
Local Time
MLT
Magnetic Local Time
MWWL
Melbourne-Wübbena Wide-Lane
PLL
Phase Lock Loop
PRN
Pseudo-Random Noise
PVT
Position, Velocity and Time
SBAS
Satellite Based Augmentation System
SIDC
Solar Influences Data Analysis Center
SV
Satellite
TEC
Total Electron Content
USRP
Universal Software Radio Peripheral
UTC
Coordinated Universal Time
viii
Acknowledgements I wish to thank the following people for their assistance and support during my master’s
study.
My advisor, Professor Jade Morton, for her mentoring, technical guidance, and for
providing me with opportunities to pursue my research objectives.
Our graduate director, Professor Qihou Zhou, for his guidance, encouragement and
support over the past two years.
Professor Wouter Pelgrum for serving on my committee and providing constructive
inputs.
Dr. Mike McCormick of Marsh Creek, for providing the magnetometer data for the
analysis.
My student colleague Steve Taylor for extracting GPS receiver data used in the research
and for reading and correcting my manuscripts.
My parents for their long-term encouragement and support.
This thesis project is supported by AFOSR grant #FA9550-10-1-0346 and Miami
University. The author also appreciates the support of University of Alaska Fairbanks and
HAARP staff for the data collection system setup and experimental campaigns.
ix
Chapter 1 Introduction and Background 1.1 Ionospheric Scintillation Phenomena Ionosphere is a part of the upper atmosphere from about 85km to 600km altitude. When
electron density irregularities occurred in the ionosphere radio waves propagating
through the media may be affected, in which case amplitude and phase fluctuations will
be observed at the receiver (Yeh and Liu, 1982).
Ionospheric scintillation is mainly observed at the equatorial area defined by the magnetic
latitude around -15° and +15°, the auroral oval and polar cap at high latitude which are
shown in Figure 1. 1 (Skone et al., 2001). In the equatorial region, the strongest levels of
scintillation can be observed especially during the post-sunset period as well as around
equinoxes (spring and autumn) (Beniguel et al., 2009). Usually, both amplitude and phase
scintillation can be detected in the same event. Inside the auroral oval and near the polar
cap, scintillation are usually moderate and phase scintillation events occur more
frequently than amplitude ones (Aquino et al., 2005). Inside the auroral oval scintillation
is usually a nighttime phenomenon with the maximum shown in winter, while at polar
cap scintillation exists at all local time and is location-dependent (Li et al., 2010). The
data analyzed in this study are collected using a GNSS (Global Navigation Satellite
System) receiver array located in HAARP (High Frequency Active Auroral Research
Program) Alaska which is located within the 50% auroral zone as is shown in the red
circle in Figure 1. 1.
The ionosphere irregularities occurrence is highly correlated with solar activity. During
solar minimum years scintillation magnitudes and frequency of occurrence decrease
drastically as the background ionosphere activities subside (Ngwira et al., 2010; Prikryl et
1
al., 2010). During solar maximum, we expect a considerable increase in both event
number and intensity. In this thesis, we will present experimental evidence on the
distributions of the GNSS signal scintillations and their daily, seasonal, and solar activity
dependency.
Figure 1. 1 Ionosphere scintillation data collection sites at high latitude and equatorial locations (taken
from Morton, 2013).
1.2 Geomagnetic Field and Ionosphere Scintillation Geomagnetic field is the Earth’s main
magnetic field whose form is largely subject
to the Earth’s inner core and solar activity.
The field can be represented in XYZ
coordinates, which are three orthogonal
directions with positive values for geographic
northward (X), eastward (Y), and vertical into
the Earth (Z). Another popular set of
coordinates for geomagnetic field consists of
the horizontal magnitude (H), the eastward
2
Figure 1. 2 Components of geomagnetic field
angular direction of the horizontal component from geographic northward (D), and the
downward component (Z). Figure 1. 2 illustrates the components of the geomagnetic field,
and the conversion equations are shown in (1.1):
X = E cos(Dº), Y = H sin (Dº)
( 1. 1 )
On occasion, the declination angle Dº in degrees is expressed in magnetic eastward
directed field strength D (nT), which can be obtained from the relationship (Campbell,
2003):
D(nT) = H tan(Dº)
( 1. 2 )
Scintillation occurrence and intensity are highly correlated with geomagnetic field and
solar activity (Rodrigues et al., 2004, Aquino et al. 2005). At the equatorial region and
during the day time, the rising ionospheric plasma which is heated by the Sun falls down
magnetic field lines to higher latitudes, creating anomalies in the ionosphere that disturb
GPS signals. After sunset the horizontal magnetic field at the equator holds the
ionospheric plasma up leading to formation of bubbles in about an hour after sunset.
During magnetic storms the occurrence of bubbles is suppressed before local midnight
but enhanced after local midnight (Kintner, 2006). At high latitudes, the eastward electric
field in the dayside auroral oval directs a "tongue of ionization" from the subauroral
region into the polar cap (Aarons, 1998). Energetic electrons are accelerated along
terrestrial magnetic field lines and precipitate at approximately 110 km altitude resulting
in enhanced ionization, optical and UV emissions, and formation of ionospheric
irregularities which can lead to scintillation effects (Basu et al., 1998; Valladares et al.,
2002).
1.3 Ionospheric Scintillation Indices The widely used parameters to measure ionospheric scintillation activity are the S4 index
and σφ index, for amplitude and phase scintillation respectively. S4 is the standard
deviation of the received signal power normalized to the average signal power which is
3
given in equation ( 1. 3 )(Briggs and Parkin, 1963). σφ is the standard deviation of the
signal phase (Yeh and Liu, 1982).
S4 =
I2 − I
I
σφ =
2
φ2
2
( 1. 3 )
( 1. 4 )
where <> represents the average value over the interval of interest which is traditionally
taken as 60s period, I is the detrended signal intensity and φ is the detrended carrier phase
(Van Dierendonck et al., 1993).
As a normalized index, S4 typically falls into the range of 0 to 1, with values greater than
0.5 defined as strong scintillations. The range of φ is defined by the receiver’s carrier
tracking pull-in range. For scintillations that resulted in phase fluctuations beyond such
range, the receiver has a high probability of losing lock of the signal. At that point, the
value of φ carries no significance.
Before calculating the values of these two indices, the measurements acquired from the
receiver must be detrended to remove the slowly varying receiver clock, satellite
dynamics and low-frequency multipath. The prevalent method is to conduct a 6-order
Butterworth filter with a 0.1 Hz cut-off frequency (Van Dierendonck et al., 1993).
However, the effectiveness of this method has long been questioned (Forte and Radicella,
2002; Beach, 2006) and a new cutoff frequency for high latitude scintillation is set to
0.05Hz (Niu et al., 2012a, 2012b, 2012c). We will discuss this issue in more detail
in Chapter 4.
1.4 High­Latitude Scintillation and Impact on Global Positioning System (GPS) Previous researches have shown that high latitude scintillation is characterized by mild
amplitude scintillation and strong phase scintillation (Aquino et al., 2005). The strong
4
phase scintillation can cause degradation of positioning accuracy and may even lead to
loss of lock of GNSS signals.
Carrier tracking loop of GNSS signals is the fragile component of GNSS receiver signal
processing and is more seriously impacted by scintillation than the code tracking loop
because of the much shorter wavelength of the carrier. In addition the narrower
bandwidth of the code tracking loop improves its immunity to amplitude scintillation
(Knight et al., 1997). However, as carrier aiding of the code tracking loop is performed in
GPS receivers, it can be assumed that loss of carrier lock is shortly followed by loss of
code lock (Knight and Finn, 1998). In our experimental data analysis, the occurrence of
S4 over 0.5 is rare in Alaska. Cycle slips and loss of lock due to severe amplitude
scintillation are scarce, whereas phase scintillation or a combination of phase and
amplitude scintillation poses a real threat. Cycle slips and loss of lock are frequently
detected even when the σφ index is only about 10 degrees (0.17 radiant).
The legacy L2 P(Y) signal is more susceptible to loss-of-lock. This is because the L2 P(Y)
tracking is based on the semi-codeless tracking due to the unknown protected code. Semicodeless tracking results in higher noise levels and hence lower signal to noise ratio,
which impacts signal tracking during scintillation. Additionally, both L2 signal amplitude
and phase scintillation are affected more adversely by the irregularities due to inverse
frequency scaling relationship of scintillation (Rino, 1979a, 1979b). For this last reason,
L5 signal with even lower frequency will be influenced more by ionospheric scintillation.
It should be noted here that the new GPS civilian L2C and L5 signals both carry a dataless channel which can be tracked using four-quadrant discriminators with twice of that
of the traditional data-bearing channel’s carrier phase pull-in range. This leads to a larger
phase error tolerance range and more robust performance during phase scintillation. The
data analyzed in this thesis comes from a GSV 4004B receiver which tracks the GPS L1
and uses the L1 signal to aid L2 P(Y) code tracking. The L2C and L5 signals are not
available on this receiver.
5
When a L2 signal loses lock, dual frequency ionosphere delay correction is unavailable
and the receiver will have degraded position solution accuracy. When the number of
satellites that remain locked is less than 4, a GNSS receiver will not be able to generate
position solutions. Ionospheric scintillation also has a big influence on differential GPS
(DGPS) which relies on the spatial correlation between reference and user stations. The
error induced by ionosphere at the reference is assumed to be the same as that at the user.
However at the presence of the ionosphere irregularities, fast TEC (total electron content)
changes and hence spatial decorrelation may occur, which leads to errors in DGPS
positioning consequently (Moore et al., 2002). Satellite Based Augmentation System
(SBAS) can also be affected by ionospheric scintillation in a similar way (Skone and
Knudsen, 2000; Klobuchar, 2002).
1.5 Previous Researches on Scintillation Characterization Monitoring and modeling of ionospheric scintillation has been an active research area for
over half of a century. Two general approaches in the area are physics-based modeling of
the signal wave propagation through the ionospheric irregularities (Booker et al., 1950;
Ratcliffe, 1956; Briggs, 1975; Rino, 1979a, 1979b; Secan et al., 1995, 1997; Knight,
2000; Dyrud et al., 2006; Wernik et al., 2007; Beniguel et al., 2009; Carrano et al., 2012;
De Oliveira Moraes et al., 2012; Ghafoori, 2012) and data-driven statistical analysis of
the climatology and morphology of scintillation from ground-based and satellite-based
measurements (Aarons, 1982; Pi et al., 1997; Pullen et al., 1998; Basu et al., 2002;
Kintner et al., 2004; Smith et al., 2008; Humphreys et al., 2010; Morrison, 2010; Prikryl
et al., 2011; Liu et al., 2013). While physical model-based approach has provided
important understandings of causes and effects of scintillation phenomena, data-driven
statistical studies of scintillating radio signals behavior have helped to paint a more
comprehensive picture of occurrence and extent of scintillation activities on a global
scale.
Much of previous research regarding the scintillation climatology has been conducted at
the equatorial region where the strongest levels of scintillation can be observed. These
6
results ascertain that most low-latitude ionospheric scintillations and irregularities are
observed between the post-sunset and pre-midnight period (Basu et al., 2002; Cervera
and Thomas, 2006; Su et al., 2006; Li et al., 2007). Typically, both amplitude and phase
scintillation can be detected in the same event. A seasonal dependency has also been
discovered as more scintillation events occurred around equinoxes (spring and autumn)
(Aarons, 1982; Beniguel et al., 2009).
Contrary to scintillation at low-latitude, scintillation observed at high-latitude region is
generally moderate and phase scintillation is more frequent and intense than amplitude
scintillation (Aarons, 1997; Skone et al., 2008; Azeem et al., 2013). Inside the auroral
oval scintillation is usually a nighttime phenomenon while at polar cap scintillation exists
at all local time (Rino et al., 1983). In recent years, many research findings have been
reported based on data collected in Northern Europe and auroral/polar areas (Kersley et
al., 1988, 1995; Gola et al., 1992; Bishop et al., 1994; Nichols, 1999; Mitchell et al., 2005;
Aquino et al., 2005; De Franceschi et al., 2008; Meggs et al., 2008; Li et al., 2010;
Alfonsi et al., 2011; Garner et al., 2011; Deshpande et al., 2012; Kinrade et al., 2012).
Cumulative frequency of occurrence of phase and amplitude scintillations as well as
distributions of TEC changes (dTEC) obtained from stations in Europe were given by
Rodrigues et al. (2004). The results indicated a correlation between scintillation and
magnetic field activity index Kp. A strong influence of interplanetary magnetic field
(IMF) on ionospheric irregularity formation and movement was reported by De
Franceschi et al. (2006). High latitude scintillation characteristics at solar minimum were
presented by Li et al. (2010), Ngwira et al. (2010), and Prikryl et al. (2010) based on data
obtained from stations in Arctic and Antarctic regions. The seasonal pattern of
occurrence showed a winter maximum while the diurnal pattern was location-dependent.
A more comprehensive analysis on bipolar scintillation climatology at solar minimum
was recently published by Alfonsi et al. (2011) in which the influences of location,
season and geomagnetic field were provided in detail.
7
1.6 Contributions of Thesis Research The objective of my research for this graduate thesis is processing and analyzing the data
collected by our GNSS receiver system located in Alaska from August 2010 to March
2013. Based on the data several tasks stated below have been completed:
Scintillation event lists based on the requested thresholds and cutoff frequency were
built from which non-scintillation events were carefully excluded.
Several ionospheric scintillation distributions under different thresholds and cutoff
frequencies were obtained, including scintillation indices magnitude distributions,
event duration distributions, and events frequency diurnal, seasonal, and spatial
dependency.
Results obtained from different thresholds and cutoff frequencies were compared and
analyzed.
Correlation between scintillation and solar activity as well as geomagnetic field
activity was observed and discussed.
1.7 Overview This thesis contains six main parts, starting with the introduction of background
knowledge of ionospheric scintillations in this chapter. The data collection system setup
and methodology used in the data processing and analysis are described in Chapter 2.
Chapter 3 focuses on results obtained from different thresholds, while Chapter 4
compares result on different detrending filter cutoff frequencies. Chapter 5 discusses the
correlation between scintillation and geomagnetic field. Chapter 6 closes the thesis with
conclusions and summaries.
8
Chapter 2 System and Methodology 2.1 Data Collection System Setup The work presented in this thesis is based on data collected from a high latitude GNSS
receiver array located at Gakona, Alaska (62.39°N latitude and 145.15°W longitude), as
shown on Figure 2. 1. This is the home of the HAARP facility which is within the auroral
zone. Figure 2. 2 shows the receiver array configuration before the upgrade in the
beginning of August 2012. About 70% of the data analyzed in this study was collected
during this period. A software radio front-end, built by Ohio University Avionics
Engineering Center, was used to collect narrowband GPS L1 and L2 IF data
(Gunawardena et al., 2008). Two USRP2 radio front ends by Ettus Research were
configured to collect wideband GPS L5 and GLONASS L2 and L2 IF data (Peng and
Morton, 2010). Two commercial NovAtel OEMV3 receivers provided additional
measurements for plasma drift calculations (Wang et al., 2012). A GPS ionospheric
scintillation and TEC monitor (GISTM) GSV4004B scintillation receiver by AJ Systems
(Van Dierendonck et al., 1993, 1996, 2004) was used to record scintillation data and
generate outputs for scintillation event trigger. Only data recorded by the AJ GSV 4004B
receiver will be presented in this paper. This receiver, modified from EuroPak-3M, can
track up to 10 GPS satellites at the L1 and L2 frequencies. It generates 50Hz phase and
Figure 2. 1 Receiver position on map
Figure 2. 2 Experiment setup at HAARP, AK before
August 2012
9
amplitude measurements on L1. While on L2, only semi-codeless P code measurements
are given. In August 2012, several new antennas and receivers were added to the system.
The new configuration is shown in Figure 2. 3 in which the GSV 4004B receiver has
been moved approximately 4 km south of its original place. The main impact of
relocating the receiver is the change in multipath environment. The multipath effects are
removed from the scintillation measurements largely by the thresholds discussed later.
Figure 2. 3 Experiment setup at HAARP, AK since August 2012
2.2 Scintillation Thresholds and Example The two indices of scintillation, S4 and σφ are computed using equations ( 1. 3 ) and ( 1.
4 ). A 6th order low-pass Butterworth filter was used for L1 signal intensity measurements
(Van Dierendonck et al., 1993) and three cascaded 2nd order high-pass Butterworth filters
were applied to L1 carrier phase measurements. The cutoff frequency for the filters was
set to 0.1 Hz and 0.05 Hz in Chapter 3 and Chapter 4 respectively. The observation
interval used in this study was 10 seconds, so that every 500 sampling points were
averaged to one S4 and σφ value. This interval was chosen to create a balance between
noise performance and retention of high-frequency scintillation features.
10
In order to extract scintillation events from the raw data collected by the receiver, several
criteria have been set up based on evaluation of non-scintillation events and baseline
indicators. A detailed discussion on the selection of the criteria can be found in Taylor et
al. (2012). A brief summary is presented below:
a) Only events with elevation angles above 30° are considered in order to minimize
potential multipath effects.
b) Two sets of S4 andσφ thresholds have been applied: the higher thresholds
correspond to S4 ≥ 0.15 and σφ ≥ 15° (or 0.26 rad), while the lower ones are S4 ≥
0.12 and σφ ≥ 6° (or 0.1 rad). Both S4 and σφ are calculated using measurements
on L1 only and either index passing the threshold marks a potential event. The
high σφ threshold value is selected to reflect the impact on GNSS receiver carrier
tracking loop performance, while the conservative low thresholds were chosen to
record weak scintillation events which are good indicators of ionospheric
irregularity occurrence and plasma drift.
c) The index values have to remain above the threshold value for a minimum of 30
seconds to qualify as a scintillation event as most interference cases last no more
than 30 seconds (section 2.3.3).
d) An event detected within 5 minutes of the onset of another event trigger is not
counted as an additional scintillation event. In this case, the two nearly concurrent
events are counted as one event.
e) If multiple PRNs are experiencing scintillations simultaneously, each PRN’s
scintillation is treated as a separate event.
f) Attempts have been made to reduce the carrier phase measurement gap resulting
from temporary loss of lock of carrier signals. All cycle slip and loss of lock
events are extracted and analyzed to determine whether they are the result of real
scintillation or due to other factors such as interference, signal blockage, or
anomalies of satellite transmission.
11
Figure 2. 4 Example of strong ionospheric scintillation event on May 7 2011
Figure 2. 4 shows a set of subplots for a strong scintillation event observed on PRN 20 on
May 7, 2011. The starting time of the plot is 22:57:19 UTC. O1 and O2 in the first row are
two observables for estimating the approximate numbers of cycle slips at L1 and L2
which will be explained in detail in section 2.3.2. L1ADR and L2ADR are raw L1 and L2
phase measurements. From the plot, we can see that the scintillation event occurred at
about 16 minutes after the starting time and lasted more than 15 minutes. The elevation of
PRN 20 when scintillation happened was very high (around 75°), which can almost
exclude the possibility of multipath. The maximum value of S4 index reached more than
0.8. σφ index also fluctuated almost simultaneously with S4 index. However the maximum
σφ is only slightly above 9 degrees (~0.16 rad). During the event, the C/N0 values of L1
and L2 both experienced deep fading. While L1 PLL appears to maintained lock of the
signal, L2 lost lock several times during the scintillation event.
12
2.3 Non­Scintillation Events Exclusion As we mentioned before, a lot of events that trigger the recording system may not be real
ionospheric scintillation. Due to the complexity and varieties of non-scintillation events
building a good model to eliminate them from the list right now is impractical thus
several semi-manual methods have to be applied to rule them out.
There are three main sources of non-scintillation events that may trigger the system –
multipath, cycle slip or loss of lock caused by signal anomaly, and interference. Other
sources can also lead to scintillation-like behavior occasionally.
2.3.1 Multipath According to Taylor et al. (2012), the criteria we set can exclude most multipath while
some strong multipath may still be included in the scintillation events. We can exploit the
difference between multipath and scintillation to identify and exclude multipath.
An important property of GPS multipath is its repeatability which is illustrated in Axelrad
et al. (2005). This is especially true for the receiver measurements used in this study as
the receiver is stationary and the surrounding environment usually does not change very
quickly, while GPS satellites paths repeats themselves from day to day. There is a time
shift due to the difference between a solar day and a sidereal day (23 hours, 56 minutes, 4
seconds) which is twice the satellite orbital period. Thus generally speaking the
difference should be around 236 seconds. Although Axelrad et al. (2005) has made a
correction to it, 244 seconds in average, we can assume the shift is about 4 minutes
roughly.
13
Figure 2. 5 is a very good example consisting of several instances of repetitive multipath
which is also provided in one of our previous papers (Taylor et al., 2012). At least four
instances of repetitive multipath (circled in the graph) can be observed while a four
minutes forward-shifting is obvious. All these instances of multipath occurred in five
consecutive days. In fact, all of them lasted more than five days judging from the data
analyzed and some of them even continued for 3 weeks before final disappearance led by
an accumulative change in the signal incidence angle or a change in surrounding
environment.
0.1
4
0.05
2
0
0.1
8
8.5
9
9.5
10
0
10.5
4
0.05
0
0.1
2
8
8.5
9
9.5
10
0
10.5
4
0.05
0
0.1
2
8
8.5
9
9.5
10
0
10.5
4
0.05
0
0.1
2
8
8.5
9
9.5
10
0
10.5
4
0.05
0
7.5
2
8
8.5
9
9.5
10
10.5
0
11
Figure 2. 5 S4 and σφ for PRN 27 from 02/27-03/02/2011 (taken from
Taylor et al, 2012)
Multipath may change shapes like the one on the very right, show up in only one day or
absent itself from the scene suddenly and reappear the next day. The reasons are
comprehensive but one of them could be a sudden change in the surroundings like a
nearby parked car has left the site. Fortunately this case is not often and we have other
14
features to distinguish multipath like the high correlation between S4 and σφ indices which
can also be observed Figure 2. 5. In addition, variations in the code/carrier divergence
which is the measured difference between group delay and carrier phase advance, can
also be used to verify the existence of multipath (Van Dierendonck et al., 1993, 1996).
2.3.2 Cycle Slips and Loss of Lock Cycles slips and loss of lock are caused by large fluctuations of received signal which are
the results of ionospheric scintillation, interference, and other causes. In this research, we
are only interested in events caused by scintillations. The O1 and O2 observables
mentioned in section 2.2 are one of the indicators employed to reveal the existence of
cycle slips. They are calculated directly from the time difference of pseudorange and
carrier phase measurements at L1 and L2:
Oi = [( ρi (t ) − ρi (t − 1)) − (φi (t ) − φi (t − 1))] / λi (i = 1, 2)
( 2. 1 )
where ρi, φi and λi represent pseudorange, carrier phase measurements, and signal
wavelength in meters at L1 or L2 respectively (i=1: L1; i=2: L2). These measurements
can be explicitly written as (Misra and Enge, 2006):
ρ (t ) = r (t ) + I ρ (t ) + Tρ (t ) + c(δ tu − δ t s ) + ε ρ (t )
( 2. 2 )
φ (t ) = r (t ) + Iφ (t ) + Tφ (t ) + c(δ tu − δ t s ) + ε φ (t ) + λ N (t )
( 2. 3 )
Since true range r, ionosphere delay I (opposite in sign for code and phase), troposphere
delay T and clock error
are either the same between pseudorange and
carrier phase measurements or can be considered constant during a very short period
(0.02 s) (the decorrelation is about 1s for a DLL with 1Hz bandwidth), after applying ( 2.
2 ) and ( 2. 3 ) to ( 2. 1 ) we can obtain the following representation of O1 and O2 in which
subscriptions are omitted for brevity:
O = [ε ρ (t ) − ε ρ (t − 1) − ε φ (t ) + ε φ (t − 1) − λ N (t ) + λ N (t − 1)] / λ
= ε ρ ,φ (t , t − 1) / λ − N (t , t − 1)
( 2. 4 )
Therefore O1 and O2 is directly related to the difference of integer ambiguities at time t
and t-1, which should vary around zero (as in Figure 2. 4). However as the observables
15
have been largely contaminated by noise, a more accurate cycle slip detection and
correction algorithm need to be implemented. The method chosen in this research is
described in Liu (2011) in which combinations of Melbourne-Wübbena Wide-Lane
(MWWL) and TEC rate equations are solved to determine the number of cycle slips.
Note that it is necessary to first obtain pseudorange and carrier phase estimations when
loss of lock lasted a relatively long period because under this circumstance both
pseudorange and carrier phase measurements will be recorded 0 in the GSV4004B
receiver, thus no cycle slips can be detected as N remains 0.
All cycle slips and loss of lock events will be marked as scintillation events at first.
Nonetheless some of them are caused by other signal anomalies besides scintillation. The
most common case involves much larger jumps on L1 (e.g. 105 cycles) than those on L2
(usually no more than 50 cycles) at a certain epoch, which is abnormal since scintillation
impact on L1 is less than that on L2. More than 95% of this type of anomalies occurred to
PRN 21 and a few to PRN 4. These events are excluded from the scintillation event list
and as they are more likely due to satellite signal anomaly rather than ionospheric
irregularities.
2.3.3 Interference Interference is usually caused by disturbance in the environment close to the receiver
antenna such as surveillance radar, satellite phones, or an aircraft flying over the line-ofsight signal path. Cases of interference are often observed as large and abrupt spikes on
scintillation indices on all satellites. The corresponding received power may either rise or
drop suddenly.
16
S4 & σφ
L1 & L2 C/N0
Time (min)
Time (min)
PRN2
20
30
0.5
5
0
0.4
0
20
0.2
10
S4
PRN4
0
40
10
10
20
30
45
35
25
50
σφ (º)
S4
10
σφ (º)
1
0
46
42
38
0
0.4
0
10
0.2
5
0
0.15
0
4
PRN20 S4 0.1
3
0.05
2
44
0
0.4
1
4
40
0.2
2
PRN31
S4
0
0.3
0
6
S4 0.2
4
0.1
2
σφ (º)
44
36
σφ (º)
52
48
54
σφ (º)
PRN23
S4
50
46
42
48
σφ (º)
PRN13
52
0
0
330o
300o
PRN 2
North
0o
30o
45o
44
40
30o
60o
60o
PRN 4
75o
PRN 31
270o
90o East
PRN 13
PRN 23
240o
PRN 20
210o
180o
120o
150o
Figure 2. 6 Interference example on March 7 2013 starting at 22:00:00 UTC with sky plot
17
40
Figure 2. 6 is an interference example observed on March 7, 2013 starting at 22:12:00
UTC and lasted about 30 seconds. Huge spikes on both scintillation indices especially the
S4 index were observed on all visible satellites at the time, and the plot only shows six
most obvious ones. The right panel provides the L1 (blue) and L2 (green) carrier to noise
(C/N0) ratio. During the interference, the C/N0 on both bands plunged and recovered
quickly. In order to show that the event is not caused by ionospheric scintillation, Figure
2. 6 also includes the sky view, in which the red markers mark the locations of the six
satellites when the interference occurred. Because the six locations were scattered over a
large range of elevation and azimuth angles, it is very likely that the disturbance in the
signals were a result of non-scintillation factors. Similar cases of interference were also
observed on other days. Close scrutiny found out that most of them lasted no more than
30 seconds, which means they can be excluded by the threshold c) setup earlier.
2.3.4 Other Non­Scintillation Events Other than the three main sources described above, other sources may also lead to sudden
changes of scintillation index values.
One example is the clock adjustment of the receiver. Events that look like cycle slips are
observed every few days on both L1 and L2 measurements for every satellite. The reason
was found to be that the CLOCKADJUST function in the receiver had been disabled
resulting in the range measurement bias errors continuously accumulating with clock drift.
If the range bias reaches ±250 milliseconds, the time will be adjusted to within ±1
microsecond (OEM4 family user mannual, 2004). Although the interval between such
events is not fixed (usually four to five days, occasionally even twice a day), this type of
events is highly recognizable because it happens simultaneously to all visible satellites
with a certain range of cycles slipped, so that they can be removed easily.
18
Chapter 3 Scintillation Characterization on Different Thresholds 3.1 Effective Data The data analyzed in this thesis were collected by the GSV4004B scintillation receiver in
Alaska from August 2010 to March 2013. Occasional system outages due to hardware,
software, or environmental issues lead to some missing data during the time period. Table
3. 1 summarizes the number of equivalent days during which data were recorded for each
month followed by their corresponding percentage of days. Fractional days are combined
to sum to a whole number of days.
Table 3. 1 Number and percentage of days of effective data
Year
2010
Day #
Month
January
February
March
April
May
June
July
August
September
October
November
December
Total
Percent
2011
Day #
Percent
2012
Day #
31
100
7.8
28
100
19.8
23
74.2
15.1
Not available
28.9
96.3
0
31
100
0
30
100
22.3
17
54.8
28
6
19.4
21
67.7
26.8
28
90.3
0
0
30
15
48.4
6
19.4
31
29
96.7
14
46.7
30
31
100
18.6
60
8
109
71.2
248.6
68.1
218.8
Grant total in 2010, 2011, 2012and 2013
2013
Percent
Day #
Percent
25.2
68.3
48.7
0
0
74,3
90.3
86.5
100
100
100
25.8
59.8
21.8
28
31
70.3
100
100
TBD
80.8
657.2
89.8
67.5
In the time span of 32 months (2.67 years) during the data collection experiment, a total
of 657 equivalent days of data have been obtained. Approximately 5800 events were
extracted according to the low S4 andσφ thresholds stated before, while about 3000 events
19
were extracted based on the high thresholds. In this chapter, results obtained from the two
sets of thresholds with 0.1 Hz cutoff frequency will be compared and analyzed.
3.2 S4 and σφ Distributions Figure 3. 1 and Figure 3. 2 are distributions of the two ionospheric scintillation indices S4
and σφ which directly reflect the intensity of amplitude and phase scintillations
respectively. Maximum S4 and σφ during an event are extracted to show the strength of
scintillation levels. In Figure 3. 1, all amplitude scintillation events are considered while
Figure 3. 2 contains all phase scintillations. A scintillation event having both amplitude
and phase scintillations are included in both figures. Results obtained from the low
thresholds are represented in triangle markers and those from the high thresholds are
marked by stars.
For amplitude scintillation, the shapes of the two distributions are similar with the first
few bins make up a large proportion indicating that amplitude scintillation observed in
Alaska were generally weak. Cases of strong amplitude scintillation with S4 index more
than 0.5 were rare with accumulative possibility of approximately 1% and 5% for the low
and high thresholds respectively.
For phase scintillation, the distributions for the two thresholds are slightly different with
the result for the high thresholds peaks at the second bin. Compared with Figure 3. 1
strong phase scintillation with maximum σφ values over 30 degrees (or 0.5 rad) occurred
much more frequently with accumulative possibility of about 12.4% and 36.8% for the
two thresholds respectively.
20
0.7
Low thresholds (0.12 & 6º)
High thresholds (0.15 & 15º)
0.6
Probability
0.5
0.4
0.3
0.2
0.1
0
0
0.2
0.4
0.6
0.8
1
maxS4
Figure 3. 1 Max S4 index distribution for amplitude scintillation events
0.45
Lower thresholds (0.12 & 6º)
0.4
Higher thresholds (0.15 & 15º)
0.35
Probability
0.3
0.25
0.2
0.15
0.1
0.05
0
0
20
40
60
80
100
maxσφ (degrees)
Figure 3. 2 Maxσφ index distribution for phase scintillation events
21
3.3 Event Duration Distributions All event duration distribution
1800
1600
Low thresholds
High thresholds
1200
mean = 8.93 min
std = 12.52 min
mean = 5.25 min
std = 6.96 min
Event number
1400
1000
800
600
400
200
0
10
20
30 40 50 60
Duration(min)
(a)
70
80
10
20
30
40
50
60
70
80
Duration(min)
(d)
Different type event duration distribution
Amplitude scin. event #
400
300
Low thresholds
Amplitude Scintillation
High thresholds
Amplitude Scintillation
200
mean = 3.69min
std = 5.02 min
mean = 3.09min
std = 4.26 min
100
0
10
20
30
40
(b)
50
60
70
10
20
30
40
(e)
50
60
70
Phase scin. event #
1500
1000
500
0
10
Low thresholds
Phase scintillation
High thresholds
Phase scintillation
mean = 9.68 min
std = 13.07 min
mean = 5.64 min
std = 7.27 min
20
30
40
50
60 70
60
70
10
20
30
40
50
Duration(min)
Duration(min)
(f)
(c)
Figure 3. 3 Duration distributions for all scintillation events (a)(d), amplitude scintillation (b)(e) and phase
scintillation (c)(f) under different thresholds
22
The duration of scintillation events is an important indicator of background ionosphere
plasma distributions and dynamics. Longer scintillation events also has more negative
impact on GNSS receivers performance.
Figure 3. 3 presents several duration distributions for different types of scintillation
events with results for the low thresholds on the left and those for the high thresholds on
the right. Mean duration and standard deviation are labeled on each subplot. The overall
event duration distribution regardless of the type (amplitude or phase) of the events are
given in (a) and (d). Subplots (b)(c)(e)(f) compare amplitude scintillation event duration
and number of events with those of phase scintillations. On average, amplitude
scintillations lasted around three minutes while phase scintillations lasted nearly three
times longer for the low threshold and twice for the high threshold. Additionally, phase
scintillation events have been observed nearly an order of magnitude more often than the
amplitude ones. Considering the intensity, the duration, and the occurrence frequency, it
Amplitude scintillation duration
is clear that phase scintillation dominates at high latitudes.
80
60
40
20
0
0
0.2
0.4
0.6
maxS 4
0.8
1
0
0.1
0.2
0.3
Average S 4
0.4
Phase scintillation duration
80
60
40
20
0
0
30
60
max σ
90
120 0
20
40
60
Average σ
φ
φ
Figure 3. 4 Event duration vs. maximum and average S4 and σφ values based on amplitude and phase
scintillation events extracted using the high thresholds
23
Figure 3. 4 compares event duration vs. the corresponding maximum and average S4 and
σφ values based on amplitude and phase scintillation events extracted using the high
thresholds. This plot shows that most scintillation events are short and weak while hardly
any are long and strong. Comparing phase with amplitude scintillation, the former
appears to have higher chance of events with stronger intensity and longer duration at the
same time.
3.4 Event Temporal and Diurnal Dependency Scintillation event temporal density is defined as the number of events recorded during a
certain period of time, which helps to identify the most likely period within a day when
scintillation events may occur. Based on all the events extracted using the two thresholds
from the entire available data set, overall event occurrence probability distributions have
been established in Figure 3. 5 as a function of Coordinated Universal Time (UTC), hours
after local sunset and Magnetic Local Time (MLT). The conversion between UTC and
MLT is shown in Table 3. 2.
The two sets of results in Figure 3. 5 are similar with the upper three more smooth due to
larger number of samples. A clear peak appeared at around UTC noon and most events
were concentrated between 7 to 17 hours UTC which is between 10PM to 8AM local
time (LT = UTC - 9) or 9PM to 7AM during daylight saving time (LT = UTC - 8). The
same data were converted to hours with respect to (w/r/t/) the middle point between
sunset and sunrise, and magnetic local time as are shown in Figure 3. 5 (b)(e) and (c)(f).
Clearly, most scintillation events in Alaska were observed during either geographic or
magnetic local nighttime, and around two hours post the middle point between sunset and
sunrise.
24
Table 3. 2 AJ receiver corresponding corrected geomagnetic coordinates and magnetic local time
Year
2010
2011
2012
2013
CGM_Latitude (°)
63.10
63.11
63.12
63.13
CGM_Longitude (°)
269.85
270.07
270.29
270.51
MLT midnight in UTC
10.75
10.74
10.72
10.71
Low thresholds (0.12 & 6º)
Probability
0.12
0.08
0.04
0
0
6
12
18
(a) UTC (hours)
24
-6
0
6
12 0
(e) Hours wrt sunset sunrise
middle point
6
12
18
(c) MLT (hours)
24
High thresholds (0.15 & 15º)
Probability
0.12
0.08
0.04
0
0
6
12
18
(d) UTC (hours)
24
-6
0
6
12 0
6
12
18
24
(f) MLT(hours)
(e) hours w/r/t/ the middle
point between sunset and
sunrise
Figure 3. 5 Overall hourly event occurrence probability vs. UTC (a)(d), hours with respect to the middle
point between sunset and sunrise (b)(e), magnetic local time (c)(f) under different thresholds
25
3.5 Event Spatial Distributions Low thresholds (0.12 & 6º)
300º
High thresholds (0.15 & 15º)
North
30º
45º
60º
300º
60º
30º
45º
60º
60º
75º
75º
270º
270º
90º
90º
240º
240º
120º
120º
210º
300º
180º
(a) All events
210º
150º
30º
45º
60º
60º
300º
180º
(d) All events
30º
45º
60º
75º
270º
240º
120º
270º
120º
150º
210º
180º
(e) Amplitude scintillation
60º
300º
75º
270º
90º
240º
150º
210º
180º
(b) Amplitude scintillation
300º
60º
75º
90º
30º
45º
60º
150º
30º
45º
60º
60º
75º
90º
240º
120º
270º
90º
240º
120º
150º
210º
180º
(c) Phase scintillation
150º
210º
180º
(f) Phase scintillation
Figure 3. 6 Scintillation spatial occurrence for all scintillation events (a)(d), amplitude scintillation (b)(e)
and phase scintillation (c)(f) under different thresholds (grid number: 120x120).
26
Event spatial distribution plots are
given in Figure 3. 6 for all events,
amplitude and phase scintillations to
show
where
scintillations
300º
were
observed more frequently in the sky.
The plots are presented in a sky view
0º
330º
North
30º
30º
45º
60º
60º
75º
270º
90º
form, in which the center is the receiver
local zenith and circles around it are
120º
240º
equal-elevation contours. The elevation
210º
masking angle is 30° to minimize
180º
150º
Figure 3. 7 24-hour SV path
multipath effects. Each event was
marked on the plot using the average elevation and azimuth after being weighted by the
amplitudes of the two scintillation indices. Therefore a brighter pixel corresponds to more
events and larger magnitude events. In each plot, the brightest region is near the center at
elevation of 75° to 80° and azimuth of 180° to 210°. This is the local magnetic zenith that
has been known to be a scintillation-active spot with frequent intense scintillation events
which are also relatively free from multipath considering the high elevation. Amplitude
scintillation in Figure 3. 6 (b) and (e) is especially concentrated around this local
magnetic zenith, whereas phase scintillation appeared to occur more often elsewhere
other than the zenith. Two regions near the edge in the subplot (c) and (f) are also
brighter. Apart from scintillation, they could also be contributed by denser satellite paths
(Figure 3. 7) in the area and multipath that overlay on scintillation induced fluctuations.
3.6 Percentage of SVs experiencing simultaneous scintillation An important measure of scintillation impact on satellite navigation is the number of
satellites affected by scintillation simultaneously. This is because a navigation receiver
can only generate a PVT solution when there is a minimum of four satellites available,
and larger number of satellites can improve the geometric dilution of precision (GDOP),
and hence the PVT solution accuracy.
27
Figure 3. 8 is a plot showing the local geomagnetic field variations (zero-mean strength)
together with the number of satellites with elevation over 30 degrees that were affected
by scintillation (S4 ≥ 0.12 or σφ ≥ 6°) simultaneously on July 15, 2012. The percentage of
satellites affected by scintillation was also calculated by dividing the number by the total
number of satellites with elevation angles higher than 30 degrees. The scintillation on this
day was fairly intense and during some time periods all satellites above the elevation
mask were affected by scintillation. About 25% of the day, over 50% satellites were
simultaneously affected by scintillation. In addition, it can be noticed that fluctuations on
magnetic field and percentage of satellites affected are highly synchronized, which will
Percent
B Field Variation (nT)
be further discussed in Chapter 5.
800
H
0 D
Z
-800
100
Percent of SV Affected
0
Number of SV
6
No. SV Above 30 o Elevation
3
0
0
No. SV Affected
2
4
6
8
10
12
Time (Hours)
14
16
18
20
22
24
Figure 3. 8 Magnetic field variation, and number and percentage of satellites experiencing scintillation
simultaneously on July 15 2012 based on the lower thresholds. Elevation mask is 30 degrees.
3.7 Seasonal Distributions The seasonal dependency of scintillation has been discovered by earlier research which
also indicates that it is a regional phenomenon. At equatorial regions, more scintillation is
observed around equinoxes (spring and autumn) (Beniguel et al., 2009). While at the
polar cap, scintillation is more of a wintertime phenomenon (Li et al., 2010).
28
The location of our receiver is within the 50% auroral oval. As the data presented here
were collected during the upswing period of a solar maximum, we observed seasonal and
solar activity dependency. We divided a year into four seasons: spring - March to May;
summer – June to August; fall – September to November; winter – December to February
of the following year. In all we have data for eleven seasons in 32 months. Seasonal
analysis is given in this section and monthly distributions are given in Appendix A for
completeness.
High thresholds (0.15 & 15º)
Low thresholds (0.12 & 6º)
Mean maxS4
0.4
0.3
0.2
0.1
Mean maxσφ (degrees)
0
(a)
(c)
FA WI SP SU FA WI SP SU FA WI SP
FA WI SP SU FA WI SP SU FA WI SP
2010
2010
40
30
20
10
0
2011
2012
2013
2012
2013
(d)
Figure 3. 9 Seasonal average maxS4 values for amplitude scintillation events (a)(c) and average
(b)
2011
maxσφ values for phase scintillation events (b)(d) under different thresholds.
Figure 3. 9 compares the average of maxS4 and maxσφ values of the events that occurred
during each season. From the upper subplots about amplitude scintillation, it can be
observed that the S4 index on average did not vary much during the time period and the
values kept low in general. However, the two subplots on the bottom for phase
scintillation evidently display a seasonal pattern showing that spring and autumn had
more intense phase scintillations. Moreover, a slow upward trend can also be observed
which corresponds to an increase in solar activity over the 32 months.
29
Figure 3. 10 shows amplitude, phase, and all scintillation event duration seasonal
dependence under different thresholds. It can be seen that the seasonal pattern in (b) is
not clear, while the pattern in (a) is fairly noticeable. For both amplitude and phase
scintillation, events in spring and autumn were observed generally longer than those in
summers and winters. The influence of solar activity, however, is not very obvious in the
figure.
Duration (min)
14
12
All events
Amplitude
Phase
10
8
6
4
2
0
14
(a) Low thresholds (0.12 & 6º)
12
8
(min)
Duration
10
6
4
2
0
FA
WI
2010
SP
SU
FA
WI
SP
SU
FA
2012
2011
(b) High thresholds (0.15 & 15º)
WI
SP
2013
Figure 3. 10 Seasonal average event duration histograms of both types of scintillation, amplitude
scintillation and phase scintillation under different thresholds.
Seasonal variations in average event number per day is shown in Figure 3. 11. An
obvious seasonal pattern can be observed. A stack histogram is presented so that the
average event number per day in each season can be obtained by adding each segment up.
The bottom, top, and middle segment represent phase scintillation only, amplitude
scintillation only, and amplitude and phase scintillations coexisting scenarios respectively.
30
In general, summer and winter experienced fewer scintillation events than spring and
autumn.
The overall ascending trend in Figure 3. 11 stopped at spring 2012, and descends
significantly after that. This transition is correlated with the dip in solar activity during
the ongoing solar max. In order to show this the correlation between the solar activities
and scintillation events, the figure also includes the monthly smoothed sunspot number
which is averaged over each season, as an indicator of solar activity magnitude. Note that
the monthly smoothed sunspot numbers in and after December 2012 are estimations from
Solar Influences Data Analysis Center (SIDC). Clearly, the two sets of data match fairly
well, showing that scintillation occurrence frequency is mainly influenced by solar
activity while modulated by the relative position between the Sun and the Earth.
80
Phase
Amplitude & phase scin.
Amplitude
30
25
60
20
15
40
10
Mean sunspot number
Mean event number
35
5
Mean event number
20
(a) Low thresholds (0.12 & 6º)
80
30
25
60
20
15
40
10
Mean sunspot number
0
35
5
0
FA
WI
2010
SP
SU
FA
WI
SP
SU
FA
2012
2011
(b) High thresholds (0.15 & 15º)
WI
SP
20
2013
Figure 3. 11 Seasonal average event number per day for phase scintillation events, concurrent amplitude
and phase scintillation events and amplitude scintillation events under different thresholds.
31
Chapter 4 Scintillation Characterization and Detrending Filter Cutoff Frequency Scintillation indices are affected by the detrending method performed on the raw data.
Choosing a proper filter is not an easy task and the prevalent method is a 6-order
Butterworth filter with 0.1Hz cutoff frequency for both signal intensity and carrier phase
measurements. This filter has been challenged by several researchers who blamed the
filter for causing the condition known as ‘phase scintillation without amplitude
scintillation’ especially at high latitudes (Forte and Radicella, 2002; Beach, 2006; Niu et
al., 2012a). Recent studies presented in Niu et al. (2012b, 2012c) have shown that the 6th
order Butterworth filter is an appropriate detrending tool if the cutoff frequency is
lowered to 0.05 Hz for carrier phase measurements. Nevertheless, the use of 0.05 Hz cutoff frequency is to ensure that all ionosphere irregularity induced GPS signal phase
fluctuations are included in the events analysis. As far as receiver carrier tracking
performance is concerned, it is not necessary to include such low frequency phase
components as the receiver PLL bandwidth is usually adequate to follow these low
frequency phase variations.
In this chapter we will compare the impact of using different cutoff frequencies on
scintillation characterization. Since the detrending method only applies to carrier phase
measurements, only σφ index is considered. In order to make better comparison, results
obtained from using different cutoff frequencies and different σφ thresholds are put
together in the plots below.
4.1 Maxσφ Index Distributions Figure 4. 1 shows maximum σφ  index distributions among different conditions.
Comparing the green and red markers (both use 15º as σφ threshold), the change in cutoff
32
frequency did not affect the general shape of the distributions. However, the percentage
of the first few bins has lowered while the percentage of 40º to 70º bins increased,
indicating that applying the lower cutoff frequency increases the σφ index values in
general. Figure 4. 2 is an example illustrating how the σφ index is affected after applying
the 0.05Hz cutoff frequency.
0.45
0.4
6o threshold + 0.1Hz cutoff
15o threshold + 0.1Hz cutoff
0.35
15o threshold + 0.05Hz cutoff
Probability
0.3
0.25
0.2
0.15
0.1
0.05
0
0
20
40
60
σφ (degrees)
Max 80
100
σφ (degrees)
PRN = 26, July 15 2012, 19:30:00 - 20:40:00UTC
70
300
65
250
60
200
55
80
150
Cutoff Freq. = 0.1Hz
Cutoff Freq. = 0.05Hz
60
40
20
0
0
10
20
30
40
Time (min)
50
60
70
Figure 4. 2 σφ index value comparison between 0.1Hz and 0.05Hz cutoff frequency
33
Azimuth (degrees)
Elevation (degrees)
Figure 4. 1 Max σφ index distribution comparison between thresholds and cutoff frequencies.
4.2 L2 P(Y) Tracking Performance As was mentioned before, the results shown in this section are based on measurements on
GPS L1 CA signal. The L2 P(Y) tracking of the receiver is based on semi-codeless
tracking. Thus the measurements on L2 band are more noisy and the tracking is more
vulnerable to scintillation. As a result the scintillation indicators on L2 were not
considered. Nevertheless, we were curious about the quantitative relationship between the
L1 CA and L2 P(Y) tracking of the AJ receiver during scintillation and how the cutoff
frequency values would affect it.
Loss of lock probability
1
0.8
0.6
0.4
0.2
0
0
0.1Hz cutoff freq.
0.05Hz cutoff freq.
2
4
6
8
maxσφ (degrees)
10
12
14
Figure 4. 3 Probability of loss-of-lock/cycle slip on L2P(Y) during phase scintillation observed on
L1CA with different cutoff frequencies on AJ receiver.
Figure 4. 3 presents statistical distributions showing the possibility of occurrence of cycle
slips or loss of lock on L2 while L1 tracking remains locked during phase scintillation
events. The horizontal axis shows the σφ index on L1 when the L2 P(Y) signal lost lock.
Only phase scintillation has been considered since amplitude scintillations were generally
too small to cause problems to the carrier tracking loop in the data. The distributions are
as expected as the possibility of loss-of-lock or cycle slips on L2 is proportional to the σφ
34
index value on L1 and the curve for 0.05Hz cutoff frequency shift right (to larger values)
from the one for 0.1Hz cutoff frequency. When the σφ index on L1 reached to 60° and 90°
for the two cutoff frequencies, it was almost definite that the receiver would have trouble
tracking the L2 signal. On the other hand, even when the σφ index was relatively low
(around 15°), the L2 P(Y) signal could still lose lock or experience cycle slip.
Exponential polyfit curves were generated based on the scatter plot data points to fit the
trend of the distributions (the solid curves). The polynomial obtained from Matlab for
0.1Hz cutoff frequency is
15
exp
60
( 5. 1 )
where p1 = 3.364e-005, p2 = -5.934e-003, p3 = 3.562e-001, p4 = -7.303e+000.
The polynomial for 0.05Hz cutoff frequency is
exp
30
90
( 5. 2 )
where p1 = 2.147e-005, p2 = -5.710e-003, p3 = 5.121e-001, p4 = -15.531e+000.
4.3 Event Duration Distributions Phase scintillation event duration distributions are compared in Figure 4. 4 with means
and standard deviations noted in the legend. Unlike Figure 4. 1, the distribution for 15º
threshold and 0.05Hz cutoff frequency is closer to the one for 6º threshold and 0.1Hz
cutoff. This indicates that applying the 0.05Hz cutoff frequency not only makes events
appearing stronger but also lasting longer.
35
Phase scintillation event number
1200
6o threshold + 0.1Hz cutoff
mean = 9.68; std = 13.07
15o threshold + 0.1Hz cutoff
mean = 5.64; std = 7.27
15o threshold + 0.05Hz cutoff
mean = 8.41; std = 10.80
800
400
0
0
10
20
30
40
50
60
70
Duration (min)
Figure 4. 4 Phase scintillation event duration comparison between different thresholds and
cutoff frequencies
4.4 Event Temporal and Diurnal Dependency Similar plots for scintillation occurrence probabilities for the 0.05Hz cutoff frequency are
provided in Figure 4. 5, in which only phase scintillation events are included. The three
distributions are more smooth than those in Figure 3. 5 (d)-(f) as more scintillation events
have been recorded.
Probability
0.12
0.08
0.04
0 0
-6
0
6
12 0
6
24 -12
12
18
24
(b) Hours w/r/t/ the middle
(c) MLT (hours)
point between sunset and
sunrise
Figure 4. 5 Phase scintillation occurrence probability with 15º threshold and 0.05Hz cutoff frequency
6
12
18
(a) UTC (hours)
36
4.5 Seasonal Distributions Seasonal average maximum σφ index, average phase scintillation duration, and average
phase scintillation event number for the two sets of thresholds and cutoff frequencies are
given in Figure 4. 6, Figure 4. 7, and Figure 4. 8 respectively. The 0.05Hz cutoff
frequency maintains the same seasonal pattern as the ones shown in section 3.7,
confirming that spring and autumn scintillation events are more frequent, more intense,
and longer lasting.
45
6o threshold + 0.1Hz cutoff
15othreshold + 0.1Hz cutoff
15o threshold + 0.05Hz cutoff
40
Seasonal mean maxσφ (degrees)
35
30
25
20
15
10
5
0
FA
WI
SP
SU
FA
WI
SP
SU
FA
WI
SP
2010
2012
2011
2013
Figure 4. 6 Seasonal average maximum σφ values for phase scintillation events with different thresholds
and cutoff frequencies
37
14
6o threshold + 0.1cutoff
15o threshold + 0.1cutoff
15o threshold + 0.05cutoff
Mean duration (min)
12
10
8
6
4
2
0
FA
WI
SP
SU
FA
WI
SP
SU
FA
WI
SP
2010
2012
2011
2013
Figure 4. 7 Seasonal average event duration histograms of phase scintillation with different thresholds and
cutoff frequencies
35
6o threshold + 0.1Hz cutoff
15o threshold + 0.1Hz cutoff
Seasonal mean event number
30
15o threshold + 0.05Hz cutoff
25
20
15
10
5
0
FA
WI
2010
SP
SU
FA
WI
SP
SU
FA
2012
2011
WI
SP
2013
Figure 4. 8 Seasonal average phase scintillation event number per day with different thresholds and
cutoff frequencies
38
Chapter 5 Ionospheric Scintillation and Geomagnetic Field Activity It is well known that high latitude ionosphere scintillation is driven by interplanetary
magnetic field and magnetosphere processes and is correlated with solar flares and
coronal mass ejections (Basu et al., 2002). Previous studies have discussed the
dependence of high latitude scintillation occurrence on geomagnetic activity using the
IMF data (Li et al., 2010; Alfonsi et al., 2011), as well as the global magnetic index Kp
(Beniguel et al., 2009). In this thesis a quantitative correlation between local geomagnetic
field disturbances and ionosphere scintillation is studied based on GNSS data collected
by the GSV4004B receiver and fluxgate measurements from a magnetometer co-located
in Gakona, Alaska (HAARP, ASF).
Figure 5. 1 and Figure 5. 2 show the correlation between scintillation indices and the
magnitude of local geomagnetic field deviations based on data collected during three
days with strong scintillation events - March 1 of 2011, July 9 of 2012, and July 15 of
2012. Average amplitude and phase scintillation indices were obtained over one hour
interval for all satellite paths within the vicinity of the local magnetic zenith (elevation:
78°±5°, azimuth: 195°±20°). Standard deviations of H, D, Z components and their square
root were also calculated over one hour period. A linear correlation can be observed in
both Figure 5. 1(a) and Figure 5. 2 (a). The correlation coefficients between the
geomagnetic field deviation magnitude and the phase and amplitude scintillation indices
are 0.87 and 0.73 respectively, clearly indicating a stronger correlation between phase
scintillation and geomagnetic field disturbances. Similar correlation values are obtained
between deviations of D, H, and Z components of the geomagnetic field disturbances and
the phase and amplitude scintillation indices.
39
200
250
100
200
Standard deviations of H/D/Z (nT)
Square root of std of H,D,Z (nT)
300
Corr. Coef.= 0.73
150
100
50
0
0.02 0.02
H: Corr. Coef.= 0.72
0
200
100
D: Corr. Coef.= 0.61
0
300
200
Z: Corr. Coef.= 0.71
100
0
0.02 0.025 0.03
0.03 0.03 0.04 0.045 0.05
Average S4
(a)
0.035 0.04
Average S4
(b)
0.045
0.05
Figure 5. 1 Correlation between geomagnetic field component deviations and average S4 index over
satellites observed within magnetic zenith (integrate interval = 60 min).
200
Standard deviations of H/D/Z (nT)
Square root of std of H,D,Z (nT)
300
250
200
150
100
Corr. Coef.= 0.87
50
0
0
100
H: Corr. Coef.= 0.74
0
200
100
D: Corr. Coef.= 0.92
0
300
200
100
5
10
15
20
Average σφ (degrees)
(a)
0
0
25
Z: Corr. Coef.= 0.81
5
10
15
20
Average σφ (degrees)
(b)
25
Figure 5. 2 Correlation between geomagnetic field component deviations and average σφ index over
satellites observed within magnetic zenith (integrate interval = 60 min).
A more striking way to demonstrate the relationship between geomagnetic field
disturbance and the level phase scintillation is shown in Figure 5. 3. Instead of correlating
each scintillation index values with the geomagnetic field disturbance values measured at
40
the same time, we compared maximum phase scintillation index values of phase
scintillation events with their corresponding local magnetometer measured peak-to-peak
field disturbance magnitude is generated based on 665 phase scintillation events extracted
from eleven days of strong phase scintillation. The dates includes five days from 2011
(3/1, 3/10, 5/2, 5/28, and 11/1) and six days in 2012 (2/15, 3/10, 3/15, 7/9, 7/15, and 7/16).
The figure shows that larger disturbances in geomagnetic field lead to stronger
scintillation events in general. Note that no amplitude scintillation events are considered
because of the much smaller number of events as well as their lower intensity available in
the data set.
1
Maxσφ probability
0.8
15º < maxσφ < 30º
30º < maxσφ < 45º
0.6
45º < maxσφ < 60º
0.4
60º < maxσφ < 75º
maxσφ > 75º or loss of lock
0.2
0
[50,280)
[280,519)
[519, 754)
[754, 988)
(a) Geomagnetic field amplitude peak-to-peak (nT)
Maxσφ probability
1
1
0.8
0.6
0.4
0.2
0
50
242
433 625 816 50 184 317 451 584 50 204 357 511 664
(b) maxH - minH (nT)
(c) maxD - minD (nT)
(d) maxZ - minZ (nT)
Figure 5. 3 Marginal max σφ occurrence probability on variations in geomagnetic field amplitude.
41
Chapter 6 Conclusions In this thesis, statistical characterization of high-latitude ionospheric scintillation
climatology was presented on the basis of 50Hz amplitude and phase data recorded by the
GSV4004B receiver located in Gakona, AK. Two sets of thresholds for S4 and σφ have
been implemented to filter scintillation events from the raw data and about 5800 and
3000 events were extracted respectively. Based on the events extracted, several statistical
distributions have been obtained and discussed which include S4 and σφ distributions,
event temporal and spatial distributions as well as event duration distributions. The
influences of local time, seasons and solar activity on scintillation have also been
revealed. In addition, comparison between results from 0.1Hz and 0.05Hz cutoff
frequency is presented in this thesis as well. These results provide a better understanding
of when, where and how scintillation happens in high-latitude region and can help with
future scientific research on the space weather and robust GNSS receiver development.
The major results discussed in the previous sections can be summarized as follows:
At high latitude, phase scintillation is much stronger and more frequent than amplitude
scintillation, regardless of the solar activity. For the low thresholds and 0.1Hz cutoff
frequency, over 80% of observed events are phase scintillation only events, while only 11%
are amplitude only events. 9% are events with both amplitude and phase scintillations.
Among all phase scintillations, 50% of them have σφ > 10 degrees. For amplitude
scintillation, 90% of the events have S4 index under 0.25.
Phase scintillation events last much longer than amplitude scintillation events. For the
low thresholds, the average phase scintillation events last 9.7 minutes, while the average
amplitude scintillation events only last 3.7 minutes.
42
Scintillation events are most frequently observed during geographic or magnetic local
nighttime, especially after two hours post local sunset. For Alaska this corresponds to
approximately UTC noon. Approximately 40% of scintillation occurred 2 hours within
UTC noon.
In the northern auroral zone where the receiver is located, scintillation intensity and
occurrence frequency are primarily affected by solar activity and is secondarily
modulated by seasons. In spring and autumn, scintillation is usually more intense, more
frequent and longer lasting than in summer and winter.
Scintillation occurs more frequently and intensely around the local magnetic zenith. For
the low thresholds, about 20% of scintillations events with duration longer than 5 minutes
and maxS4 index more than 0.3 or maxσφ index more than 30º occurred within 10º
elevation and 20º azimuth around the local magnetic zenith.
The use of 0.05Hz cutoff frequency increases the number of phase scintillation events
and makes them appear stronger and last longer. It doesn’t change much the temporal and
spatial dependency as well as the seasonal pattern.
L2 P(Y) semi-codeless tracking is much more fragile to scintillation than L1 tracking. For
the receiver used, when σφ on L1 reaches 60° and 90° for 0.1Hz and 0.05Hz cutoff
frequency respectively, the probability of L2 cycle slip/loss-of-lock tends to 1.
Scintillation event occurrence and event magnitude are strongly correlated with the
variation rate and amplitude of local geomagnetic field measurements observed at high
latitudes. The correlation coefficient between the magnitude of local magnetic field
disturbance and phase and amplitude scintillation indices are 0.87 and 0.73 respectively.
During a particular day on July 15, 2012 when large local magnetic field disturbance
lasted about 15 hours and the peak disturbance exceeded 1500 nT, over 50% of satellites
in view were affected by scintillation for over 25% of time.
43
Bibliography [1]
Aarons, J. (1982), Global morphology of ionospheric scintillation, Proc. IEEE, 70,
360-378.
[2]
Aarons. J. (1997), Global Positioning System phase fluctuations at auroral latutudes,
J. Geophys, 102(A8), 17219-17231.
[3]
Alaska Satellite Facility (June 1 2013), Geophysical Institute Magnetometer Array,
GeoData Center, http://www.asf.alaska.edu/program/gdc/project/magnetometer.
[4]
Alfonsi, L., L. Spogli, G. De Franceschi, V. Romano, et al (2011), Bipolar
climatology of GPS ionospheric scintillation at solar minimum, Radio Science, 46,
RS0D05, doi:10.1029/2010RS004571.
[5]
Aquino, M., T. Moore, A. Dodson, S. Waugh, J. Souter and F. S. Rodrigues (2005),
Implications of ionospheric scintillation for GNSS users in norhtern Europe,
Journal of Navigation, 58(2), 241-256, doi: 10.1017/S0373463305003218.
[6]
Axelrad, P., K. Larson, B. Jones (2005), Use of the correct satellite repeat period to
characterize and reduce site-specific multipath errors, Proc. ION GNSS, Long
Beach, CA.
[7]
Azeem, I., G. Crowley, A. Reynolds, J. Santana, and D. Hampton (2013), First
results of phase scintillation from a longitudinal chain of ASTRA’s SM-211 GPS
TEC and scintillation receivers in Alaska, Proc. ION PNT.
[8]
Basu, S., E. J. Weber, T. W. Bullett, M. J. Keskinen, E. MacKenzie, P. Doherty, R.
Sheehan, H. Kuenzler, P. Ning, J. Bongiolatti (1998), Characteristics of plasma
structuring in the cusp/cleft region at Svalbard, Radio Science, 33, 1885-1899.
[9]
Basu, S., K. Grovesa, Su. Basu, P. Sultana (2002), Specification and forecasting of
scintillations in communication and navigation links: current status and future plans,
J. Atmo. Solar-Terr. Phy., 64, 1745-1754.
[10] Beach, T. L. (2006), Perils of the GPS phase scintillation index (Sigma Phi), Radio
Science, 41, RS5S31, doi: 10.1029/2005RS003356.
[11] Beniguel, Y., V. Romano, L. Alfonsi, M. Aquino, et al (2009), Ionospheric
scintillation monitoring and modelling, Annals of Geophysics, 52, 391-416.
44
[12] Bishop, G. J., T. W. Bullet, E. A. Holland (1994), GPS measurements of L-Band
scintillation and TEC in the northern polar cap ionosphere at solar maximum,
Proceedings of the International Beacon Satellite Symposium, Aberystwyth, UK.
[13] Booker, H. G., J. A. Ratcliffe, D. H. Shinn (1950), Diffraction from an irregular
screen with applications to ionospheric problems, Philosophical Trans. Royal
Society London. Series A, Mathematical & Physical Sci., 242(856), 579-607.
[14] Briggs, B. H., I. A. Parkin (1963), On the variation of radio star and satellite
scintillations with zenith angle, J. Atmos. Terr. Phys., 25, 339-365.
[15] Briggs, B. H. (1975), Ionospheric irregularities and radio scintillation, Contemp.
Phys., 16(5), 469-488.
[16] Carrano, C. S., K. M. Groves, W. J. McNeil, P. H. Doherty (2012), Scintillation
characteristics across the GPS frequency band, Proc. ION GNSS, 1972-1989,
Nashville, TN.
[17] Cervera, M. A., R. M. Thomas (2006), Latitude and temporal variation of equatorial
ionospheric irregularities determined from GPS scintillation observations,
Ann.Geophy., 24, 3329-3341.
[18] Campbell, W. H. (2003), Introduction to Geomagnetic Fields, Second Edition,
Cambridge University Press.
[19] De Franceschi, G., L. Alfonsi, V. Romano (2006), Isacco: an Italian project to
monitor the high latitude ionosphere by means of GPS receivers, GPS Solut., 10,
263-267, doi: 10.1007/s10291-006-0036-6.
[20] De Franceschi, G., L. Alfonsi, V. Romano, M. Aquino, A. Dodson, C. N. Mitchell,
P. Spencer, A. W. Wernik (2008), Dynamics of high-latitude patches and associated
small-scale irregularities during the October and November 2003 storms. J Atoms.
Solar-Terr Phys, 70, 879-888.
[21] De Oliveira Moraes, A., D. R. de Paula, W. J. Perrella, F. da Silveira Rodrigues
(2012), On the distribution of GPS signal amplitudes during low-latitude ionopheric
scintillation, GPS Solut., doi: 10.1007/s10291-012-0295-3.
[22] Deshpande, K. B., G. S. Bust, C. R. Clauer, H. Kim, J. E. Macon, T. E. Humphreys,
J. A. Bhatti, S. B. Musko, G. Crowley, and A. T. Weatherwax (2012), Initial GPS
45
scintillation results from CASES receiver at South Pole, Antarctica, Radio Sci., 47,
RS5009, doi:10.1029/2012RS005061.
[23] Dyrud, L., N. Bhatia, S. Ganguly, A. Jovancevic (2006), Performance analysis of
software based GPS receiver using a generic ionospheric scintillation model, Proc.
ION GNSS, 1402-1412, Fort Worth, TX.
[24] Forte, B., S. M. Radicella (2002), Problems in data treatment for ionospheric
scintillation measurements, Radio Sci. 37(6), 1096, doi: 10.1029/2001RS002508.
[25] Garner, T. W., R. B. Harris, J. A. York, C. S. Herbster, C. F. Minter III, and D. L.
Hampton (2011), An auroral scintillation observation using precise, collocated GPS
receivers, Radio Sci., 46, RS1018, doi: 10.1029/2010RS004412.
[26] Ghafoori, F. (2012), Modeling the impact of equatorial ionospheric irregularities on
GPS receiver performance, A PhD Thesis.
[27] Gola, M., A. W. Wernik, S. J. Franke, C. H. Liu and K. C. Yeh (1992), Behaviour
of HILAT scintillation over Spitsbergen, J. Atmos. Terr. Phys., 54(9), 1207–1213.
[28] Gunawardena, S., Z. Zhu, F. van Graas (2008), Triple frequency RF front-end for
GNSS instrumentation receiver applications, Proc. ION GNSS, Savana, GA.
[29] HAARP - the High Frequency Active Auroral Research Program (June 1 2013),
HAARP
Fluxgate
Magnetometer,
http://www.haarp.alaska.edu/cgi-
bin/magnetometer/gak-mag.cgi.
[30] Humphreys, T. E., M. Psiaki, B. Ledvina, A. Cerruti, and P. M. Kintner, Jr. (2010),
Modeling the effects of ionospheric scintillation on GPS carrier phase tracking,
IEEE Trans. Aero. & Elec. Sys., 46(4), 1624-1537.
[31] Jiao, Y., Y. Morton, S. Taylor, W. Pelgrum (2013a), High latitude ionosphere
scintillation characterization, Proc. ION ITM, San Diego, CA.
[32] Kersley, L., S. Pryse, N. Wheadon (1988), Amplitude and phase scintillation at high
latitudes over northern Europe, Radio Sci, 23(3), 320–330.
[33] Kersley, L., C. Russell, D. Rice (1995), Phase scintillation and irregularities in the
northern polar ionosphere, Radio Sci., 30(3), 619–629.
[34] Kinrade, J., C. N. Mitchell, P. Yin, N. Smith, M. J. Jarvis, D. J. Maxfield, M. C.
Rose, G. S. Bust, and A. T. Weatherwax (2012), Ionospheric scintillation over
46
Antarctica during the storm of 5–6 April 2010, J. Geophys. Res., 117, A05304, doi:
10.1029/2011JA017073.
[35] Kintner, P. M., B. M. Ledvina, E. R. de Paula, and I. J. Kantor (2004), Size, shape,
orientation, speed, and duration of GPS equatorial anomaly scintillations, Radio Sci.,
39, RS2012, doi:10.1029/2003RS002878.
[36] Kintner, P. M., B. M. Ledvina, and E. R. de Paula (2007), GPS and ionospheric
scintillations, Space Weather, 5, S09003, doi: 10.1029/2006SW000260.
[37] Knight, M. F., A. Finn, M. Cervera (1997), Ionospheric effects on Global
Positioning System receivers, DSTO-RR-0121 Report, Electronics and Surveillance
Research Laboratory, Defence Science and Technology Organisation, Australia.
[38] Knight, M. and A. Finn (1998), The effects of ionospheric scintillation on
GPS/satellite-based augmentation system availability, Proc. ION GPS-98, 673-686,
Nashville, TN.
[39] Knight, M. F. (2000), Ionospheric scintillation effects on Global Positioning System
receivers, A PhD Thesis.
[40] Kleusberg, A. (1993), The global positioning system and ionospheric conditions,
NOAA/Dept. of Commerce Pub., 1, 142-146.
[41] Klobuchar, J. (2002), Ionospheric research issues for SBAS – a white paper, SBAS
Ionospheric Working Group, Ver 225.
[42] Li. G., B. Ning, L. Liu, Z. Ren, J. Lei, S. Su (2007), The correlation of longitudinal
seasnal variations of evening equatorial pre-reversal drift and of plasma bubbles,
Ann. Geophys, 25, 2571-2578.
[43] Li, G., B. Ning, Z. Ren, L. Hu (2010), Statistics of GPS ionospheric scintillation
and irregularities over polar regions at solar minimum, GPS Solut., 14, 331-341, doi:
10.1007/s10291-009-0156-x.
[44] Liu, Z. (2011), A new automated cycle slip detection and repair method for a single
dual-frequency GPS receiver, Journal of Geodesy, 85(3), 171-183, doi:
10.1007/s00190-010-0426-y.
[45] Liu, Z., R. Xu, Y. Morton, J. Xu, W. Pelgrum, W. Chen, X. Ding (2013), A
comparison of GNSS-based ionospheric scintillation observation in north and south
Hong Kong, Proc. ION PNT.
47
[46] Meggs, R. W., C. N. Mitchell and F. Honary (2008), GPS scintillation over the
Europe Arctic during the November 2004 storms, GPS Solu., 12, 281-287, doi:
10.1007/s10291-008-0090-3.
[47] Misra, P. and P. Enge (2006), Global positioning system: signals,measurements,
and performance, 2nd Ed., Ganga-Jamuna Press.
[48] Mitchell, C. N., L. Alfonsi, G. De Franceschi, M. Lester, V. Romano and A. W.
Wernik (2005), GPS TEC and scintillation measurements from the polar ionophere
during the October 2003 storm, Geophys Res Lett, 32, L12S03, doi:
10.1029/2004GL021644.
[49] Mushini, S., P. Jayachandran, R. Langley, J. MacDougall, D. Pokhotelov (2011),
Improved amplitude- and phase-scintillation indices derived from wavelet
detrended high-latitude GPS data, GPS Solutions, doi: 10.1007/s1029-011-0238-4.
[50] Moore, T. M., M. Aquino, A. Dodson and S. Waugh (2002), Impact of ionospheric
scintillation on EGNOS and DGPS users in northern Europe, Proceeding of GNSS
2002, Copenhagen, Denmark.
[51] Morrison, A. J. (2010), High latitude ionospheric scintillation: detection and
isolation from oscillator phase noise as applied to GNSS, A PhD Thesis.
[52] Morton, Y. (2013), Overview of Miami University Navigation Research in 2012-13,
COUNT Annual Workshop, Columbus, OH.
[53] Ngwira, C. M., L. McKinnell, P. J. Cilliers (2010), GPS phase scintillation observed
over a high-latitude Antarctic station during solar minimum, Journal of
Atmospheric
and
Solar-Terrestrial
Physics,
72,
718-725,
doi:
10.1016/j.jastp.2010.03.014.
[54] Nichols, J., Hansen, A., Walter, T., Enge, P. (1999), High latitude measurements of
ionospheric scintillation using the NSTB, Proc. ION 1999 National Technical
Meeting.
[55] Niu, F., Y. Morton, J. Wang, W. Pelgrum (2012a), GPS carrier phase detrending
methods and performances for ionosphere scintillation studies, Proc. ION ITM,
1462-1467, Newport Beach, CA.
48
[56] Niu, F., Y. Morton, S. Taylor, W. Pelgrum, A. J. Van Dierendonck (2012b),
Performances of GPS signal observables detrending methods for ionosphere
scintillation studies, Proc. ION GNSS, Nashville, TN.
[57] Niu, F. (2012c), Performances of GPS signal observables detrending methods for
ionosphere scintillation studies, A Master Thesis.
[58] OEM4 family user mannual - volumn 2: command and log reference, pp. 21, 51,
2004.
[59] Pelgrum, W., Y. Morton, F. van Graas, P. Vikram, S. Peng (2011), Multi-domain
analysis of the impact on natural and man-made ionosphere scintillations on GNSS
signal propagation, Proc. ION GNSS, 617-625, Portland, OR.
[60] Peng, S., Y. Morton (2010), A USRP2-based multi-constellation and multifrequency GNSS software receiver for ionosphere scintillation studies, Proc. ION
ITM, San Diego, CA.
[61] Pi, X., A. J. Mannucci, U. J. Lindqwister, and C. M. Ho (1997), Monitoring of
global ionospheric irregularities using the Worldwide GPS Network, Geophys. Res.
Lett., 24(18), 2283–2286, doi:10.1029/97GL02273.
[62] Prikryl, P., P. T. Jayachandran, S. C. Mushini, D. Pokhotelov, J. W. MacDougall, E.
Donovan, E. Spanswick, and J. P. St.-Maurice (2010), GPS TEC, scintillation and
cycle slips observed at high latitudes during solar minimum, Ann. Geophys., 28,
1307– 1316, doi:10.5194/angeo-28-1307-2010.
[63] Prikryl, P.,L. Spogli,P.T. Jayachandran, J. Kinrade,C.N. Mitchell,B. Ning, G. Li, et
al (2011), Interhemispheric comparison of GPS phase scintillation at high latitudes
during the magnetic-cloud-induced geomagnetic storm of 5-7 April 2010, Ann.
Geophy., 29(12), 2287-2304, DOI: 10.5194/angeo-29-2287-2011.
[64] Pullen, S., G. Opshaug, A. Hansen, T. Walter, P. Enge, B. Parkinson (1998), A
preliminary study of the effect of ionospheric scintillation on WAAS user
availability in equatorial regions, Proc. ION GPS, Alexandria, VA.
[65] Ratcliffe, J. A. (1956), Some aspects of diffraction theory and their application to
the ionosphere, Rep. Prog. Phys., 19(1), 188-267, doi:10.1088/0034-4885/19/1/306.
[66] Rino, C. L. (1979a), A power law phase screen model for ionospheric scintillation:
1. Weak scatter, Radio Science, 14, 1135-1145.
49
[67] Rino, C. L. (1979b), A power law phase screen model for ionospheric scintillation:
2. Strong scatter, Radio Science, 14, 1147-1155.
[68] Rino, C. L., R. C. Livingston, R. T. Tsunoda, R.M. Robinson, J. F. Vickrey, et al
(1983), Recent studies of the structure and morphology of auroral zone F region
irregularities, Radio Sci., 18, 1167-1180.
[69] Rodrigues, F. S., M. Aquino, A. Dodson, T. Moore, S. Waugh (2004), Statistical
analysis of GPS ionospheric scintillation and short-time TEC variations over
Northern Europe, Journal of ION, 51(1), 59-75.
[70] Secan, J. A., R. M. Bussey, and E. J. Fremouw (1995), An improved model of
equatorial scintillation, Radio Sci., 30(3),607-617.
[71] Secan, J. A., R. M. Bussey, and E. J. Fremouw (1997), High-latitude upgrade to the
wideband ionospheric scintillation model, Radio Sci., 32(4), 1567-1574.
[72] SIDC – Solar Influences Data Analysis Center (June 1 2013), Sunspot
Data, Monthly and monthly smoothed sunspot number, http://sidc.oma.be/sunspotdata.
[73] Skone, S., and K. Knudsen (2000), Impact of ionospheric scintillations on SBAS
performace, Proc. ION GPS 2000, Salt Lake City, UT.
[74] Skone, S., K. Knudsen and M. de Jong (2001), Limitations in GPS receiver tracking
performance under ionospheric scintillation conditions, Phys. Chem. Earth (A),
26(6-8), 613-621.
[75] Skone, S., F. Man, F. Ghafoori, R. Tiwari (2008), Investigation of scintillation
characteristics for high latitude phenomena, Proc. ION GNSS, 2425-2434, Savanna,
GA.
[76] Smith, A. M., C.N. Mitchell, R.J. Watson, R.W. Meggs, P.M., Kintner, K. Kauristie,
and F. Honary (2008), GPS scintillation in the high arctic associated with an auroral
arc, Space Weather, 6, S03D01, doi:10.1029/2007SW000349.
[77] Su, S., C. Lin, H. Ho and C. Chao (2006), Distribution characteristics of topside
ionospheric density irregularities: equatorial versus midlatitude regions, J. Geophys,
doi: 10.1029/2006JA011330.
50
[78] Taylor S., Y. Morton, Y. Jiao, J. Triplett, W. Pelgrum (2012), An improved
ionosphere scintillation event detection and automatic trigger for GNSS data
collection systems, Proc.ION ITM, 1563-1569, Newport Beach, CA.
[79] Van Dierendonck, A. J., P. Fenton, T. Ford (1992), Theory and performance of
narrow correlator spacing in a GPS receiver, Journal of ION, 39(3), 265-283.
[80] Van Dierendonck, A. J., J. A., Klobuchar, Q. Hua (1993), Ionospheric scintillation
monitoring using commercial single frequency C/A code receivers, Proc. ION ITM,
Salt Lake City, UT.
[81] Van Dierendonck, A. J., Hua, Q., Fenton, P., Klobuchar, J. A. (1996), Commercial
Ionospheric Scintillation Monitoring Receiver Development and Test Results, Proc.
ION Annual Meeting, 573-582.
[82] Van Dierendonck, A. J., B. Arbesser-Rastburg (2004), Measuring ionospheric
scintillation in the equatorial region over Africa, including measurements from
SBAS geostationary satellite signals, Proc. ION GNSS, Long Beach, CA.
[83] Valladares, C. E., R. Sheehan, M. P. Hagan and E. MacKenzie (2002), Studies of
ionospheric structures and their effects on Systems, Air Force Research Laboratory
Report, AFRL-VS-TR-2002-1668.
[84] Wang, J., Y. Morton, Q. Zhou, F. van Graas, W. Pelgrum (2012), Time-frequency
analysis of ionosphere scintillations observed by a GNSS receiver array, Proc.
IEEE PLANS, Myrtle Beach, SC.
[85] Wernik, A. W., L. Alfonsi, M. Materassi (2007), Scintillation modeling using in
situ data, Radio Sci., 42, RS1002, doi:10.1029/2006RS003512.
[86] Yeh, C. K., C. H. Liu (1982), Radio wave scintillations in the ionosphere, Proc.
IEEE, 70(4), 324-360.
51
Appendix A. Scintillation Characterization Monthly Distributions The three plots below were obtained using the low thresholds and 0.1Hz cutoff frequency.
Mean maxS4
0.4
0.3
0.2
0.1
0
Mean max σφ (degrees)
25
20
15
10
5
0
201008
201012
201104
201108
201112
201204
201208
201212
201304
Figure A. 1 Monthly average max S4 and max σφ
14
Amplitude scin.
Phase scin.
12
Duration (min)
10
8
6
4
2
0
201008
201012
201104
201108
201112
201204
201208
Figure A. 2 Monthly average event duration
52
201212
201304
Mean event number
500
70
Phase scin.
Amp. & phase scin.
Amplitude scin.
60
400
50
300
40
200
30
100
20
0
201008
201012
201104
201108
201112
201204
201208
Figure A. 3 Monthly average event number per day
53
201212
201304
10
Smoothed monthly sunspot number
600
B. Scintillation Event List (high thresholds & 0.1Hz cutoff) Table B. 1 Scintillation event list based on the high thresholds and 0.1 Hz cutoff frequency
PRN
14
14
31
2
12
24
32
2
2
5
5
5
5
5
7
7
7
7
7
8
8
8
8
10
10
10
10
12
13
13
16
21
26
31
2
5
10
16
UTC date
2010 9 24
2010 9 24
2010 9 24
2010 10 1
2010 10 1
2010 10 3
2010 10 5
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 23
2010 10 24
2010 10 23
2010 10 23
2010 10 24
2010 10 24
2010 10 24
2010 10 24
Start (s)
969352500
969354287
969354531
970006233
970006233
970122673
970302327
971865871
971866366
971871703
971872391
971872777
971873549
971874346
971872500
971872895
971873365
971874413
971875521
971872232
971872895
971873289
971874615
971872467
971872886
971873667
971874875
971892682
971864948
971872416
971865627
971914542
971876008
971858973
971952547
971957145
971952757
971952757
End (s)
969352550
969354656
969354648
970006266
970006266
970122706
970302671
971865921
971866492
971871829
971872441
971872920
971873608
971874774
971872559
971872928
971873709
971874741
971875714
971872517
971873046
971873616
971874816
971872576
971873054
971873725
971875093
971892732
971865007
971873155
971866702
971914777
971876067
971859015
971953059
971957624
971952857
971952832
54
Ele (°)
52.712
40.901
30.383
48.786
69.987
75.083
76.585
31.057
30.921
35.313
38.467
40.293
42.770
44.650
74.397
76.258
77.879
75.601
69.351
41.086
45.696
49.461
59.430
50.644
48.353
44.146
35.730
33.636
67.998
44.297
34.477
60.612
30.911
46.000
30.736
32.454
41.812
35.455
Azi (°)
75.474
64.361
125.085
121.854
149.689
199.403
225.637
296.086
291.646
302.816
298.661
295.449
289.235
279.599
185.356
175.866
154.793
119.938
102.441
225.888
226.860
227.514
228.189
229.006
224.878
219.332
212.255
255.575
243.621
120.731
82.342
205.738
291.680
72.957
289.817
305.616
292.355
78.166
maxS4
0.040
0.078
0.078
0.152
0.269
0.186
0.098
0.034
0.059
0.052
0.054
0.054
0.041
0.041
0.158
0.035
0.040
0.036
0.030
0.038
0.040
0.073
0.052
0.050
0.051
0.047
0.065
0.672
0.028
0.062
0.058
0.169
0.058
0.045
0.056
0.068
0.053
0.048
maxσφ (°)
65.015
137.930
16.698
3.169
1.754
5.202
30.635
16.538
16.947
25.984
75.452
28.752
25.934
36.923
18.131
19.877
28.034
25.344
33.828
17.756
34.559
28.740
19.161
20.180
35.359
18.797
27.069
6.325
16.323
27.209
24.559
3.660
30.437
52.473
21.602
18.535
17.576
18.946
PRN
16
16
2
8
16
7
27
9
15
27
16
16
27
17
28
20
29
20
28
4
12
14
17
24
32
12
9
27
27
29
2
2
2
2
2
4
5
5
5
5
6
12
UTC date
2010 10 24
2010 11 11
2010 11 12
2010 11 12
2010 11 12
2010 11 21
2010 12 7
2010 12 20
2010 12 20
2010 12 20
2010 12 21
2010 12 21
2010 12 28
2011 1 7
2011 1 19
2011 1 30
2011 2 1
2011 2 5
2011 2 5
2011 2 6
2011 2 6
2011 2 6
2011 2 6
2011 2 14
2011 2 14
2011 2 15
2011 2 18
2011 2 18
2011 2 18
2011 2 18
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
2011 3 1
Start (s)
971953847
973505520
973589905
973602912
973590660
974370976
975768665
976883946
976883434
976882855
976949893
976953200
977581035
978441551
979470516
980387270
980610811
980904128
980933079
981029119
981028003
981030100
981028003
981759633
981759977
981807523
982059612
982057917
982058420
982074834
983015974
983016486
983020035
983021177
983022351
983015537
983022452
983024835
983026405
983027529
983036902
983016821
End (s)
971954040
973505553
973589955
973602945
973591004
974371018
975768698
976884231
976883560
976883300
976949927
976953242
977581077
978442852
979471179
980387337
980610845
980904379
980933112
981032287
981028036
981030134
981028145
981759683
981760296
981807951
982059646
982058051
982058479
982074994
983016049
983016620
983020539
983021319
983022544
983016133
983023023
983025037
983026472
983028049
983037003
983017350
55
Ele (°)
36.228
35.444
30.509
74.374
36.292
74.159
70.882
33.162
51.776
47.493
35.781
31.534
51.737
42.738
38.842
75.011
80.291
74.976
55.831
41.143
60.978
30.592
35.181
65.776
70.965
77.080
69.154
71.307
69.666
78.744
50.381
51.824
44.715
39.322
31.747
38.623
31.495
38.214
38.215
34.899
63.750
54.312
Azi (°)
67.711
60.645
288.021
111.040
68.295
186.529
206.820
285.635
256.115
279.162
77.726
49.569
177.648
67.113
79.449
200.205
193.877
200.175
83.010
100.692
256.512
291.972
62.957
218.080
238.047
161.162
228.745
213.408
204.067
210.284
117.375
111.260
71.317
65.706
61.322
64.809
101.428
83.020
68.972
57.693
230.455
138.858
maxS4
0.058
0.043
0.077
0.026
0.086
0.204
0.175
0.042
0.044
0.038
0.323
0.313
0.107
0.063
0.063
0.252
0.071
0.362
0.039
0.068
0.027
0.043
0.042
0.200
0.244
0.441
0.168
0.252
0.119
0.291
0.029
0.031
0.051
0.045
0.059
0.064
0.154
0.053
0.091
0.083
0.055
0.064
maxσφ (°)
15.641
22.586
25.094
18.207
21.711
5.340
1.339
22.619
25.725
24.546
5.066
2.849
18.262
34.273
22.790
2.721
23.829
9.023
23.152
15.217
17.486
21.182
20.389
2.545
16.462
7.785
17.070
28.740
30.213
27.631
18.250
19.868
42.381
36.259
30.965
18.634
85.543
23.925
44.559
28.356
16.865
22.966
PRN
12
12
12
15
16
17
21
21
21
21
22
25
25
25
25
25
25
25
25
29
29
29
29
29
29
29
29
29
30
30
30
31
31
31
2
2
3
26
2
20
20
23
UTC date
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
2011 3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
7
7
8
Start (s)
983018777
983019238
983020044
983036147
983027244
983009034
983025154
983025842
983026992
983027663
983036424
983014463
983017065
983018307
983019758
983020984
983021663
983023467
983023904
983016242
983017149
983019196
983019607
983020858
983022091
983023241
983027000
983028863
983024365
983027613
983028620
983017652
983020648
983021865
983106501
983107156
983118065
983086924
983193379
983574832
983577526
983578206
End (s)
983018835
983019347
983020128
983036726
983029509
983009177
983025490
983026220
983027336
983027865
983036902
983014631
983017107
983018793
983020564
983021269
983022737
983023518
983024961
983016662
983018407
983019238
983020463
983021319
983022897
983024970
983028335
983028897
983024642
983028209
983028771
983017786
983020942
983022251
983106569
983107223
983118468
983086966
983193496
983575797
983577559
983578827
56
Ele (°)
40.751
36.980
30.895
31.919
45.268
39.087
39.858
44.566
53.294
57.920
41.219
52.825
69.620
72.944
66.861
60.326
52.200
42.041
34.642
33.785
43.866
55.020
61.379
69.390
78.524
78.356
52.621
43.284
38.320
52.478
52.368
35.367
40.325
37.249
44.244
40.603
31.465
37.192
40.073
74.492
62.052
74.752
Azi (°)
139.697
140.286
141.403
75.287
291.620
64.816
207.939
207.792
206.382
204.632
189.468
273.790
253.492
216.018
185.359
175.908
170.593
167.806
167.021
235.615
237.816
238.908
238.204
234.023
211.372
145.721
119.361
120.569
297.656
266.635
256.443
305.558
278.418
266.247
70.693
66.786
290.974
190.502
66.322
195.020
159.897
209.691
maxS4
0.046
0.042
0.082
0.078
0.061
0.077
0.059
0.082
0.036
0.037
0.061
0.043
0.033
0.160
0.115
0.087
0.101
0.200
0.083
0.079
0.057
0.046
0.091
0.044
0.143
0.100
0.070
0.047
0.092
0.040
0.035
0.038
0.058
0.049
0.032
0.033
0.046
0.091
0.037
0.852
0.247
0.303
maxσφ (°)
47.276
20.435
22.919
23.196
44.704
50.017
26.204
28.159
24.288
26.780
18.537
27.540
16.032
27.256
44.020
43.855
69.134
35.745
41.809
19.135
39.768
20.586
43.236
35.545
30.408
61.928
34.850
15.603
42.118
29.548
15.075
21.152
41.726
31.388
29.161
17.742
18.693
63.832
21.950
9.390
2.404
2.186
PRN
23
32
5
5
7
8
2
4
4
4
4
4
9
9
9
9
12
12
12
14
14
15
16
17
17
17
20
21
25
25
25
25
25
27
27
27
27
30
31
32
2
2
UTC date
2011 3 8
2011 3 7
2011 3 8
2011 3 8
2011 3 8
2011 3 8
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 10
2011 3 11
2011 3 11
Start (s)
983580270
983570796
983589768
983591136
983589265
983593007
983787958
983785105
983785541
983786381
983786909
983792439
983780783
983781681
983783200
983785550
983781698
983783502
983785239
983784853
983786431
983779877
983801284
983777116
983780926
983783939
983833558
983799623
983786851
983788092
983792934
983793782
983799228
983777150
983781664
983783628
983785533
983801561
983798809
983829899
983875373
983878662
End (s)
983580354
983571182
983589802
983591195
983590104
983593041
983789158
983785172
983786146
983786473
983787136
983792473
983780825
983781740
983785189
983785802
983781824
983784837
983786087
983785776
983786515
983780037
983801435
983777259
983781052
983784551
983833676
983800554
983787681
983788403
983792968
983793841
983800244
983777209
983781748
983785071
983785869
983801972
983799102
983829941
983875507
983879283
57
Ele (°)
79.380
79.353
43.309
46.051
75.424
71.662
35.022
30.311
34.090
36.866
39.268
32.817
64.211
68.229
62.952
53.016
34.478
52.790
64.326
31.182
31.341
32.379
31.382
46.212
56.072
40.902
74.811
34.826
33.096
40.267
71.627
73.154
35.357
57.646
69.097
51.946
41.629
48.545
31.151
79.968
40.259
52.872
Azi (°)
146.509
205.280
289.383
275.614
181.858
221.806
140.284
118.861
114.210
109.810
104.803
56.349
267.949
252.308
202.436
188.096
254.387
258.000
256.277
305.506
296.301
220.552
305.271
138.104
93.575
65.936
199.781
208.084
274.110
275.028
244.322
222.501
167.097
276.388
202.201
178.959
175.811
284.135
255.246
186.164
135.609
101.034
maxS4
0.152
0.313
0.195
0.199
0.323
0.173
0.082
0.065
0.065
0.055
0.057
0.064
0.075
0.103
0.077
0.031
0.052
0.048
0.051
0.101
0.069
0.050
0.056
0.065
0.036
0.060
0.259
0.054
0.054
0.045
0.178
0.172
0.065
0.029
0.036
0.064
0.053
0.034
0.060
0.196
0.035
0.034
maxσφ (°)
1.698
2.678
1.718
2.407
4.510
1.848
20.434
19.996
38.315
22.419
15.315
20.454
16.847
50.282
31.760
22.120
60.257
28.992
20.091
24.866
15.998
17.283
19.512
25.962
139.732
23.697
17.922
64.854
26.860
15.987
1.884
4.810
40.692
30.558
111.749
27.565
23.107
20.034
25.035
2.772
19.399
29.846
PRN
2
2
2
3
4
5
7
7
7
7
7
8
8
8
9
12
12
12
12
12
15
15
25
25
28
29
29
30
31
31
31
31
31
25
7
17
14
2
5
5
12
23
UTC date
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 11
2011 3 13
2011 3 23
2011 3 23
2011 3 24
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
Start (s)
983879954
983881423
983883580
983893633
983878872
983883957
983850693
983851389
983852497
983852866
983854754
983851263
983852900
983853974
983874584
983874223
983874684
983875213
983878553
983880265
983898928
983900329
983878855
983880290
983854863
983878175
983880340
983885006
983878939
983879954
983880500
983883672
983884939
984052727
984881568
984905803
985027136
985778363
985780637
985781090
985776491
985818483
End (s)
983880114
983883202
983884251
983893801
983879115
983886903
983850726
983851440
983852539
983853487
983854947
983851305
983853387
983854335
983874718
983874433
983874768
983875247
983879468
983881314
983899482
983900631
983879107
983881289
983854905
983878284
983881910
983886147
983879182
983880089
983882019
983883705
983884989
984052769
984881694
984905836
985027841
985778472
985780763
985781249
985777121
985818550
58
Ele (°)
51.775
42.317
32.467
32.042
30.738
35.490
72.634
67.885
59.691
54.659
41.883
70.181
81.815
80.150
30.683
79.765
80.085
78.903
51.848
37.370
32.620
30.628
71.157
71.508
49.644
36.044
58.382
35.419
34.690
38.179
40.561
37.224
31.866
72.566
72.573
30.796
51.264
38.655
35.554
36.860
34.218
75.517
Azi (°)
88.254
68.461
61.668
290.822
54.351
92.426
108.631
100.438
94.989
93.949
94.735
223.031
181.051
128.932
180.202
213.097
195.238
174.328
139.141
140.554
63.320
53.076
247.012
201.618
180.014
235.867
238.382
299.614
306.706
299.532
288.471
265.842
256.185
210.031
192.244
61.934
132.227
65.273
92.649
88.591
141.730
206.204
maxS4
0.028
0.047
0.080
0.052
0.063
0.057
0.029
0.038
0.029
0.053
0.069
0.043
0.031
0.033
0.048
0.035
0.032
0.021
0.044
0.078
0.105
0.152
0.025
0.039
0.044
0.084
0.049
0.042
0.060
0.040
0.042
0.037
0.044
0.189
0.219
0.059
0.049
0.059
0.053
0.049
0.067
0.158
maxσφ (°)
23.941
35.863
29.527
23.042
22.269
39.432
17.770
75.850
25.649
30.849
58.417
32.271
26.345
53.388
29.389
22.675
51.847
16.227
18.824
26.046
22.567
20.379
16.009
25.946
28.408
17.939
24.099
37.236
23.669
21.442
34.738
16.393
15.921
2.128
2.549
32.186
45.722
26.074
19.821
21.365
36.063
2.448
PRN
25
25
29
29
29
30
31
31
31
31
2
2
2
3
3
3
3
3
5
5
5
5
6
6
6
6
6
6
15
15
15
15
9
21
27
12
6
2
3
3
3
6
UTC date
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 2
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 6
2011 4 7
2011 4 9
2011 4 9
2011 4 10
2011 4 11
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
Start (s)
985778312
985779068
985777742
985778304
985779101
985780200
985776911
985777716
985779806
985780217
986120854
986121785
986124319
986134062
986134557
986135363
986141086
986142470
986126216
986127760
986128347
986129883
986132803
986133374
986134003
986135321
986138484
986141111
986137444
986138568
986139105
986140012
986194724
986389096
986366262
986458738
986562884
986638097
986650374
986651675
986652371
986650374
End (s)
985778413
985779160
985777817
985778337
985779856
985780276
985777054
985778715
985779848
985780377
986121022
986121827
986124387
986134112
986134675
986135455
986141573
986142504
986127391
986127836
986128389
986129959
986132845
986133483
986134633
986135657
986138610
986141279
986137629
986138677
986139324
986140121
986194850
986389171
986366329
986458931
986562918
986638139
986650433
986651792
986652438
986650500
59
Ele (°)
58.282
52.543
69.235
73.124
79.639
30.698
40.873
39.646
34.275
32.089
49.484
45.644
30.319
34.924
38.626
44.010
53.385
46.193
38.449
38.220
37.297
32.253
39.114
43.293
49.276
56.441
63.647
51.025
31.251
32.450
32.308
31.128
69.352
65.734
69.476
78.610
34.341
48.585
30.685
40.024
44.542
43.951
Azi (°)
174.206
170.812
232.967
227.955
200.638
301.896
284.782
272.969
259.429
256.103
79.914
72.581
60.992
290.021
288.730
285.782
218.483
208.193
78.375
69.866
64.791
52.965
284.210
283.056
280.031
272.611
228.597
198.286
76.283
67.151
62.155
55.250
235.726
199.849
204.150
226.578
284.840
77.767
290.940
288.088
285.390
282.791
maxS4
0.026
0.028
0.035
0.033
0.037
0.040
0.043
0.060
0.047
0.038
0.076
0.047
0.068
0.085
0.043
0.044
0.059
0.069
0.071
0.067
0.058
0.058
0.087
0.062
0.051
0.071
0.272
0.043
0.058
0.202
0.074
0.094
0.214
0.191
0.043
0.183
0.169
0.096
0.049
0.046
0.043
0.043
maxσφ (°)
30.989
19.669
20.564
18.146
23.147
19.132
192.059
41.553
22.466
21.733
41.891
16.492
19.375
20.978
32.921
20.009
17.118
17.664
22.967
17.864
18.472
23.195
23.628
30.037
31.279
27.879
148.262
23.764
16.665
37.160
23.462
16.976
2.407
2.580
17.534
2.095
3.330
25.211
24.606
23.600
21.376
28.196
PRN
6
9
9
12
12
12
16
16
17
18
21
21
21
21
25
25
25
25
25
29
29
29
29
29
31
31
31
31
12
12
25
25
31
4
3
3
5
5
15
16
25
12
UTC date
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 12
2011 4 13
2011 4 13
2011 4 13
2011 4 13
2011 4 13
2011 4 17
2011 4 18
2011 4 18
2011 4 18
2011 4 18
2011 4 18
2011 4 18
2011 4 24
2011 4 26
Start (s)
986651423
986626105
986631250
986637795
986638147
986638836
986647345
986651448
986628077
986651574
986647747
986648545
986648939
986649845
986635630
986636385
986637342
986637745
986638391
986638525
986639029
986639817
986647445
986648268
986635882
986636385
986637870
986638508
986722356
986723069
986722407
986723850
986723800
987059317
987168902
987172141
987162130
987163800
987171638
987168390
987670949
987837126
End (s)
986651901
986626324
986631594
986637971
986638575
986638886
986647454
986651675
986628119
986651675
986647890
986648587
986649266
986649879
986635806
986636612
986637459
986638173
986638592
986638651
986639070
986639859
986647487
986648352
986635932
986636427
986638047
986638877
986722449
986723523
986722440
986723892
986723850
987059351
987168953
987172217
987162390
987163834
987171730
987168424
987670983
987837622
60
Ele (°)
52.042
68.407
32.182
38.294
34.599
30.775
46.232
44.702
36.807
40.044
67.091
71.506
73.957
75.702
70.253
72.829
72.568
70.648
67.910
64.323
67.826
73.531
40.131
33.796
34.673
36.672
40.545
40.910
51.195
44.132
72.309
71.622
40.138
32.457
41.934
58.493
37.152
31.977
31.722
45.138
73.084
78.463
Azi (°)
277.822
220.718
180.456
141.320
141.926
142.623
289.348
244.284
63.970
170.057
198.112
188.543
178.007
157.520
251.344
233.837
209.784
197.040
187.818
235.709
233.727
226.793
119.886
121.428
306.793
303.274
290.016
282.973
140.184
140.590
239.574
202.192
292.668
115.660
287.069
258.466
64.276
52.547
73.318
245.459
217.209
227.820
maxS4
0.051
0.097
0.059
0.108
0.066
0.058
0.061
0.034
0.045
0.046
0.071
0.118
0.112
0.040
0.082
0.086
0.108
0.259
0.068
0.081
0.070
0.042
0.047
0.067
0.089
0.063
0.075
0.081
0.034
0.050
0.020
0.019
0.039
0.069
0.211
0.171
0.077
0.061
0.095
0.036
0.159
0.180
maxσφ (°)
24.656
52.382
16.059
19.784
42.804
27.878
20.046
17.600
19.395
25.394
16.666
18.201
25.952
16.965
16.866
35.989
23.439
47.156
21.349
36.399
17.519
20.396
20.420
20.385
29.849
23.058
19.922
36.822
16.326
25.481
17.552
19.559
25.050
24.649
14.413
2.229
33.336
18.608
51.859
15.884
2.023
2.635
PRN
25
3
5
5
5
5
5
6
6
6
6
15
16
16
18
18
18
19
19
21
21
29
29
30
30
30
30
3
3
3
6
6
6
11
11
15
16
18
18
18
18
21
UTC date
2011 4 26
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 4 30
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
2011 5 1
Start (s)
987839963
988201738
988194085
988194949
988196258
988196938
988197676
988199581
988201755
988202451
988205791
988204708
988195377
988197920
988201360
988205825
988208887
988206991
988208451
988198641
988198910
988194739
988198280
988194043
988194873
988199153
988201033
988288489
988290461
988290931
988288842
988290612
988291024
988299356
988300330
988290847
988289110
988289236
988289740
988290805
988299071
988288674
End (s)
987840005
988202837
988194152
988195394
988196308
988196980
988197987
988199615
988201880
988202501
988205908
988204935
988195528
988198180
988201411
988205875
988208929
988207108
988208510
988198717
988199145
988194915
988199011
988194085
988195369
988199480
988201301
988289387
988290621
988291116
988289102
988290721
988291166
988299658
988300363
988290948
988289513
988289270
988289916
988290940
988299642
988289278
61
Ele (°)
58.478
38.717
38.033
38.382
36.712
34.697
31.207
32.986
48.289
52.534
64.216
30.326
30.549
45.078
33.198
61.611
60.673
43.162
51.709
67.005
69.177
66.355
37.107
40.618
46.486
48.667
38.591
42.138
52.083
54.524
54.632
62.638
63.718
37.816
43.402
30.134
41.049
45.542
49.481
56.049
34.163
68.646
Azi (°)
271.281
288.628
82.495
72.270
62.726
57.374
51.454
284.820
280.597
277.319
234.448
78.709
306.226
291.709
172.077
143.748
96.117
291.013
282.113
198.897
195.150
120.569
120.584
295.814
288.471
239.501
224.404
286.925
277.174
272.601
275.051
256.666
249.982
282.834
280.022
79.292
239.010
166.713
163.844
156.366
75.865
112.354
maxS4
0.161
0.073
0.080
0.071
0.060
0.051
0.065
0.059
0.061
0.039
0.069
0.078
0.051
0.056
0.086
0.053
0.046
0.054
0.059
0.053
0.105
0.034
0.073
0.060
0.053
0.059
0.061
0.059
0.035
0.047
0.048
0.047
0.051
0.061
0.045
0.086
0.053
0.052
0.058
0.036
0.084
0.038
maxσφ (°)
1.735
26.283
67.739
23.713
16.892
22.479
28.817
15.855
17.643
15.506
18.877
44.419
18.789
16.907
21.761
18.421
22.331
21.586
21.980
15.445
31.281
19.087
32.352
18.777
29.185
16.686
19.627
30.227
26.999
28.256
26.374
22.167
18.537
30.488
28.256
27.478
29.131
20.483
26.434
19.420
24.084
29.788
PRN
22
22
24
2
2
2
4
4
4
12
12
12
16
16
21
21
21
21
21
25
25
29
29
29
29
30
30
12
13
25
29
29
6
18
21
29
29
25
25
13
25
31
UTC date
2011 5 1
2011 5 1
2011 5 1
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 2
2011 5 4
2011 5 5
2011 5 6
2011 5 8
2011 5 9
2011 5 10
2011 5 10
2011 5 10
2011 5 10
2011 5 10
2011 5 11
2011 5 16
2011 5 19
2011 5 19
2011 5 19
Start (s)
988290780
988299969
988300338
988354471
988357224
988358206
988354002
988356057
988356981
988354018
988357249
988359414
988368578
988370885
988368259
988368804
988369795
988370760
988371699
988353968
988357274
988359506
988369425
988369937
988371599
988368695
988371213
988525818
988661685
988704985
988880526
988966095
989062573
989067759
989061188
989052679
989059669
989134697
989566473
989867956
989824806
989867956
End (s)
988290822
988300179
988300716
988354513
988357308
988358239
988354052
988356091
988357274
988354060
988357526
988359464
988368981
988370961
988368292
988369123
988369954
988370802
988371733
988354127
988357350
988359666
988369635
988370256
988371809
988369039
988371246
988525851
988662382
988705019
988880576
988966548
989062606
989067801
989061985
989052721
989059996
989134958
989566532
989867998
989825184
989867989
62
Ele (°)
30.906
59.953
32.460
33.420
48.917
52.024
41.670
41.756
38.776
77.040
67.331
51.205
36.796
47.154
47.524
52.624
59.271
65.576
71.285
37.411
61.351
47.977
48.048
43.714
31.629
51.804
50.192
73.843
44.879
72.833
77.533
74.580
43.248
62.977
74.075
76.510
40.391
72.610
72.931
43.603
72.880
30.374
Azi (°)
191.625
94.834
283.339
142.424
123.456
113.171
95.301
74.612
65.323
236.509
145.246
140.663
302.283
286.720
209.414
208.574
206.080
200.856
190.060
274.856
268.999
237.039
118.510
119.211
122.065
273.592
243.787
246.952
241.784
212.126
215.149
224.661
282.946
137.314
178.749
219.373
120.137
237.366
213.023
241.216
212.198
51.052
maxS4
0.066
0.040
0.061
0.110
0.288
0.046
0.070
0.046
0.111
0.102
0.125
0.035
0.081
0.047
0.027
0.055
0.053
0.053
0.162
0.103
0.087
0.036
0.036
0.065
0.090
0.036
0.039
0.162
0.062
0.207
0.213
0.199
0.174
0.170
0.403
0.170
0.164
0.298
0.201
0.154
0.189
0.226
maxσφ (°)
19.642
34.446
24.766
20.511
132.726
16.774
41.910
17.232
159.382
19.892
138.475
26.029
29.070
17.495
21.005
20.007
21.273
17.612
3.428
37.316
38.892
20.608
19.728
30.740
26.553
30.118
19.950
1.607
40.030
1.911
1.928
2.150
2.650
2.421
5.616
11.979
3.250
5.666
2.300
3.457
1.981
6.233
PRN
32
3
6
27
2
3
3
3
3
3
5
5
5
5
6
6
6
6
6
8
10
11
11
12
14
14
14
15
15
15
15
16
16
17
18
18
18
18
18
18
19
19
UTC date
2011 5 19
2011 5 25
2011 5 25
2011 5 26
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 29
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 29
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
Start (s)
989867956
990365370
990365370
990421157
990603178
990618107
990619945
990622420
990622899
990623906
990606082
990608272
990608767
990609430
990618057
990619802
990622479
990623024
990623620
990665906
990649659
990626146
990627699
990588518
990624308
990626633
990627816
990618141
990618577
990619315
990665872
990608885
990649357
990588518
990616773
990618082
990618854
990619626
990620742
990624501
990618115
990618997
End (s)
989867998
990365412
990365403
990421191
990603229
990618753
990620222
990622454
990623083
990624770
990606946
990608314
990608801
990609522
990619567
990620188
990622538
990623058
990623914
990665939
990649701
990626943
990628445
990588569
990624871
990627111
990628345
990618183
990618971
990620180
990665939
990609657
990649701
990588569
990616823
990618527
990619089
990619945
990620834
990624535
990618661
990619357
63
Ele (°)
32.385
36.630
31.629
30.119
39.428
58.903
57.994
46.252
42.587
33.177
38.104
37.382
36.222
33.975
63.091
57.955
41.421
37.535
32.196
35.292
56.909
44.334
52.959
35.124
32.161
47.622
53.932
31.932
32.103
31.143
50.640
38.206
37.876
53.409
55.135
62.298
63.901
64.108
61.746
39.820
36.846
42.178
Azi (°)
132.069
200.652
187.466
174.849
66.173
256.290
231.464
207.745
204.500
198.916
81.777
65.371
61.235
55.939
224.071
207.034
191.008
189.343
187.592
105.661
267.677
279.229
269.618
256.444
149.487
137.343
125.919
69.368
64.203
56.221
277.615
301.216
77.165
81.801
156.829
139.590
129.101
115.288
99.946
76.341
294.064
291.564
maxS4
0.396
0.255
0.286
0.269
0.047
0.090
0.049
0.079
0.082
0.088
0.150
0.081
0.049
0.054
0.174
0.052
0.083
0.046
0.115
0.222
0.163
0.071
0.051
0.203
0.087
0.057
0.048
0.057
0.107
0.099
0.299
0.067
0.499
0.292
0.070
0.144
0.060
0.055
0.042
0.054
0.207
0.067
maxσφ (°)
6.232
3.432
5.305
4.238
26.531
23.244
26.375
20.338
19.926
64.896
55.712
18.852
19.478
24.484
34.935
32.719
31.067
27.282
22.967
5.043
2.126
32.572
21.557
4.683
36.725
27.344
20.530
37.193
46.635
38.647
2.990
26.455
4.377
3.070
32.039
48.942
28.036
21.654
53.569
20.806
103.199
25.399
PRN
19
19
19
19
21
21
21
21
21
21
22
22
22
22
22
23
24
24
24
25
25
27
29
29
29
29
29
29
29
31
3
3
3
3
3
4
5
5
6
6
6
6
UTC date
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 28
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
Start (s)
990620675
990623914
990624392
990626029
990607055
990608843
990610773
990618468
990618955
990619508
990618132
990620087
990622194
990626515
990628017
990649349
990626515
990627556
990628798
990604983
990606082
990588510
990603212
990603875
990604882
990605948
990608700
990610664
990611276
990605075
990699521
990699983
990700814
990706361
990707267
990682168
990692028
990696223
990697616
990698968
990699941
990700789
End (s)
990620817
990623990
990624669
990627489
990607097
990609783
990610983
990618720
990619089
990619978
990619668
990620121
990622236
990626985
990628219
990649710
990626885
990628328
990628840
990605041
990606208
990588569
990603397
990603967
990604949
990607013
990609715
990610706
990611511
990605209
990699555
990700050
990700940
990706822
990707636
990682562
990692078
990696265
990697700
990699555
990700084
990700839
64
Ele (°)
51.672
58.049
56.415
44.951
37.636
54.211
65.329
45.287
42.129
36.831
44.448
54.182
67.441
56.987
47.411
45.717
32.021
40.928
47.156
42.548
33.626
66.236
74.549
78.217
80.502
72.840
52.184
40.848
35.511
31.028
30.457
33.851
39.883
56.839
52.971
41.288
37.050
31.469
30.598
41.804
46.939
52.178
Azi (°)
282.226
241.065
233.314
213.413
210.212
208.813
201.915
101.311
101.552
102.302
189.464
185.289
165.274
92.277
88.128
106.473
283.448
282.922
281.161
167.712
166.828
194.577
225.664
212.403
171.467
128.041
118.910
120.587
121.830
254.293
290.850
290.177
288.080
226.683
216.929
72.931
87.409
51.835
284.711
283.338
281.301
277.642
maxS4
0.046
0.039
0.046
0.054
0.065
0.055
0.051
0.102
0.063
0.063
0.161
0.049
0.101
0.057
0.040
0.538
0.074
0.065
0.038
0.069
0.070
0.237
0.043
0.121
0.220
0.108
0.056
0.069
0.061
0.101
0.053
0.061
0.087
0.056
0.038
0.105
0.068
0.073
0.072
0.049
0.052
0.043
maxσφ (°)
56.970
18.356
24.940
33.887
15.460
40.315
16.551
23.536
15.904
33.443
50.991
17.022
38.750
29.087
19.668
4.808
44.460
20.997
16.606
23.432
71.038
4.363
51.757
32.919
38.090
82.338
35.498
19.368
28.472
23.509
30.769
30.779
23.211
29.308
27.730
73.661
34.034
32.371
32.968
22.276
23.179
19.963
PRN
6
11
11
11
12
14
16
16
16
16
16
18
18
18
18
19
19
20
20
20
20
21
21
21
21
21
21
22
22
24
24
24
25
29
31
31
31
32
32
9
9
2
UTC date
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 29
2011 5 30
2011 5 30
2011 5 31
Start (s)
990706713
990720148
990720761
990721281
990682520
990719821
990696282
990696928
990697482
990699035
990699672
990699630
990707678
990709507
990710036
990707762
990708727
990720131
990720635
990721759
990722187
990696299
990696710
990697432
990698984
990699907
990706142
990706470
990707938
990719561
990720257
990721021
990682596
990692028
990720928
990721465
990722338
990719561
990720970
990758069
990758388
990860841
End (s)
990707535
990720416
990720819
990721356
990682562
990720576
990696324
990697063
990697600
990699320
990700100
990700025
990707728
990709549
990710070
990707879
990708819
990720316
990720719
990721826
990722229
990696349
990697054
990697600
990699060
990699983
990706428
990706814
990707972
990719871
990720408
990721356
990682629
990692070
990721037
990721851
990722380
990719863
990721121
990758127
990758488
990860883
65
Ele (°)
52.086
44.448
41.117
37.552
75.437
39.378
42.787
45.773
47.590
49.402
48.344
33.729
58.407
47.532
44.020
55.900
58.468
41.882
45.271
53.622
56.715
60.394
64.288
68.432
75.370
75.441
34.030
56.917
65.323
65.999
64.103
59.940
55.326
76.686
31.911
35.870
39.550
65.877
75.099
55.932
58.341
44.155
Azi (°)
198.639
200.415
197.803
195.554
159.400
62.907
295.616
289.913
284.651
266.225
258.108
171.291
91.042
79.217
77.578
273.039
260.574
262.836
262.980
262.080
261.081
206.149
203.057
197.492
168.806
141.670
102.856
183.229
171.271
224.157
213.713
202.500
273.042
137.635
121.845
117.635
112.497
243.513
230.502
279.949
277.616
70.702
maxS4
0.044
0.049
0.031
0.044
0.039
0.053
0.050
0.054
0.046
0.040
0.058
0.079
0.049
0.041
0.063
0.055
0.037
0.045
0.043
0.039
0.049
0.038
0.071
0.040
0.030
0.034
0.074
0.048
0.029
0.044
0.032
0.049
0.051
0.034
0.073
0.082
0.064
0.051
0.039
0.211
0.288
0.050
maxσφ (°)
34.312
38.245
21.240
21.856
17.622
39.418
16.534
18.082
21.255
22.822
21.693
24.452
17.125
16.599
19.301
32.380
25.367
35.590
23.200
24.604
16.331
24.812
23.397
24.454
18.326
17.666
23.240
28.834
25.225
21.267
33.752
24.441
18.228
25.317
29.232
28.939
17.223
26.678
17.908
25.358
39.847
17.403
PRN
5
13
15
29
25
32
21
10
20
21
13
20
5
21
11
24
32
11
11
14
14
14
14
20
24
24
32
29
12
12
25
29
29
31
31
4
14
17
27
4
9
12
UTC date
2011 5 31
2011 5 31
2011 5 31
2011 5 31
2011 6 2
2011 6 5
2011 6 8
2011 6 9
2011 6 9
2011 6 14
2011 6 16
2011 6 16
2011 6 18
2011 6 18
2011 6 20
2011 6 20
2011 6 20
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 23
2011 6 24
2011 6 25
2011 6 25
2011 6 25
2011 6 25
2011 6 25
2011 6 25
2011 6 25
2011 6 26
2011 6 26
2011 6 26
2011 6 26
2011 6 27
2011 6 27
2011 6 27
Start (s)
990867252
990900743
990877951
990868981
991030317
991324901
991559678
991679711
991679711
992078014
992279830
992282767
992416972
992416972
992612201
992612201
992612201
992866732
992873756
992866917
992871238
992873017
992875384
992873378
992866698
992871289
992873689
992928434
993011653
993013256
993011645
993011645
993013256
993011653
993013264
993090600
993090600
993090592
993090642
993178670
993178679
993174046
End (s)
990867294
990901431
990877985
990869031
991030359
991325170
991559729
991679896
991679761
992078072
992280543
992282800
992417014
992417123
992612276
992612268
992612276
992867487
992873798
992867781
992872245
992873168
992875434
992873529
992867638
992871431
992873823
992928485
993011712
993013306
993011712
993011703
993013298
993011712
993013298
993090693
993090684
993090676
993090684
993178721
993178721
993174088
66
Ele (°)
36.154
38.243
31.496
42.069
72.964
79.332
71.909
36.009
33.831
75.956
43.680
34.011
38.210
42.444
59.298
59.076
44.067
47.758
46.519
50.222
53.431
46.236
30.896
37.549
34.967
62.512
67.361
65.881
53.883
41.229
72.650
43.073
55.496
36.184
40.483
35.250
31.578
33.096
40.088
41.645
35.993
40.819
Azi (°)
61.041
239.533
58.062
120.410
233.860
205.358
189.411
293.194
153.029
154.976
240.655
152.985
70.401
210.710
235.477
270.816
245.287
276.417
202.239
133.631
78.309
67.692
60.134
262.184
283.556
263.596
242.326
236.820
141.857
142.409
238.216
237.969
239.208
304.235
290.809
110.852
300.210
63.304
175.846
94.051
181.138
258.418
maxS4
0.065
0.067
0.073
0.094
0.211
0.083
0.189
0.315
0.290
0.128
0.077
0.176
0.366
0.232
0.215
0.173
0.270
0.063
0.041
0.063
0.057
0.120
0.076
0.050
0.083
0.045
0.043
0.259
0.273
0.614
0.183
0.290
0.347
0.397
0.374
0.306
0.354
0.342
0.186
0.264
0.278
0.284
maxσφ (°)
54.828
33.052
41.349
18.514
1.448
27.481
7.320
3.223
4.558
47.967
34.978
4.174
3.301
2.633
3.144
2.400
3.288
29.774
20.756
19.565
24.002
15.480
16.366
23.629
37.938
19.131
16.149
3.221
4.079
4.224
2.459
2.445
2.767
3.468
2.308
6.198
3.175
3.916
4.060
5.490
4.458
3.171
PRN
17
25
8
26
2
2
4
11
11
14
14
20
23
23
24
24
24
31
31
31
32
32
32
5
20
4
9
11
14
18
18
19
19
22
22
24
24
21
25
29
2
5
UTC date
2011 6 27
2011 6 27
2011 6 28
2011 6 28
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 1
2011 7 5
2011 7 7
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 11
2011 7 12
2011 7 12
2011 7 12
2011 7 16
2011 7 16
Start (s)
993174055
993178679
993335257
993335265
993531264
993531843
993570008
993556489
993557227
993562606
993563731
993563043
993567725
993572525
993556380
993557286
993567734
993566081
993567734
993570444
993563060
993566257
993567734
993878925
994085911
994385445
994385487
994418105
994416788
994414018
994415848
994413985
994415051
994413893
994414681
994417442
994418105
994489273
994479749
994479782
994826192
994826192
End (s)
993174088
993178721
993335307
993335299
993531306
993531885
993570662
993556682
993557269
993562808
993563781
993563588
993567784
993572618
993556674
993557328
993567784
993566282
993567776
993570579
993563269
993566467
993567776
993878976
994085961
994385529
994385529
994418164
994416821
994414102
994416209
994414623
994415084
994414312
994414874
994417660
994418156
994489416
994479799
994479824
994826234
994826243
67
Ele (°)
50.195
37.963
45.179
64.190
47.007
43.995
33.419
49.297
52.932
43.935
37.041
42.331
39.248
75.591
35.789
41.383
35.875
42.699
46.636
41.592
68.702
77.346
68.475
34.622
74.778
42.415
30.862
49.409
41.950
46.893
33.459
58.819
57.288
70.710
70.762
31.960
36.109
73.261
59.045
69.302
32.060
32.948
Azi (°)
75.323
274.737
102.178
220.200
74.609
70.567
303.156
274.791
269.678
65.717
61.868
262.615
223.702
206.916
283.545
282.916
184.558
106.525
90.378
62.944
241.079
154.039
133.968
94.769
199.802
87.520
180.242
274.665
143.337
78.694
75.130
247.092
236.258
145.597
130.084
283.587
283.561
185.368
173.826
234.957
62.563
98.365
maxS4
0.157
0.185
0.312
0.162
0.066
0.041
0.080
0.056
0.032
0.097
0.059
0.047
0.458
0.213
0.047
0.040
0.374
0.102
0.489
0.049
0.046
0.037
0.195
0.297
0.266
0.341
0.192
0.067
0.061
0.047
0.055
0.040
0.035
0.051
0.042
0.080
0.061
0.190
0.083
0.125
0.385
0.559
maxσφ (°)
2.903
3.793
3.559
4.258
26.679
17.763
31.751
25.138
17.443
18.257
25.021
33.661
4.664
13.586
21.247
16.848
4.561
24.262
3.318
17.407
15.525
15.843
3.792
5.881
1.873
5.756
4.321
15.528
17.220
15.121
27.616
21.372
21.343
28.431
24.234
22.199
16.004
2.350
20.586
17.173
3.104
3.895
PRN
31
8
10
13
16
20
31
20
32
14
20
3
4
6
13
16
18
21
23
2
4
4
12
31
7
20
20
32
20
5
5
5
6
7
7
7
8
16
18
18
21
21
UTC date
2011 7 16
2011 7 17
2011 7 17
2011 7 17
2011 7 17
2011 8 8
2011 8 8
2011 8 11
2011 8 13
2011 8 16
2011 8 17
2011 8 20
2011 8 20
2011 8 20
2011 8 20
2011 8 20
2011 8 20
2011 8 20
2011 8 20
2011 8 26
2011 8 25
2011 8 25
2011 8 26
2011 8 26
2011 8 27
2011 8 29
2011 8 29
2011 8 29
2011 8 31
2011 10 24
2011 10 24
2011 10 24
2011 10 25
2011 10 24
2011 10 24
2011 10 24
2011 10 24
2011 10 24
2011 10 25
2011 10 25
2011 10 24
2011 10 25
Start (s)
994826192
994961011
994961011
994961011
994961011
996842639
996843378
997101170
997264094
997525725
997618081
997853362
997883882
997853362
997883891
997853345
997853354
997853362
997883882
998354381
998308126
998309931
998354373
998354381
998493239
998651251
998651771
998648222
998824334
1003491496
1003492310
1003533220
1003538338
1003491908
1003493427
1003494593
1003495776
1003484582
1003537726
1003539262
1003535745
1003538691
End (s)
994826234
994961061
994961053
994961061
994961061
996842933
996843428
997101464
997264136
997525935
997618157
997853404
997883933
997853421
997883933
997853429
997853429
997853429
997883933
998354423
998308160
998309981
998354423
998354423
998493273
998651352
998652090
998648322
998824376
1003491874
1003492487
1003534059
1003538498
1003492848
1003493494
1003494778
1003496834
1003484926
1003537986
1003539522
1003538557
1003539564
68
Ele (°)
33.553
41.554
50.445
49.556
31.957
74.798
45.328
74.654
41.771
44.342
74.855
51.288
32.485
62.623
75.694
39.194
54.289
63.405
69.493
54.021
30.146
37.650
45.857
39.247
67.837
74.932
74.875
79.859
74.634
42.298
44.226
32.134
56.532
77.909
74.163
66.050
81.667
31.746
44.052
54.019
75.742
67.567
Azi (°)
258.060
221.717
217.673
117.049
49.759
198.729
72.231
196.348
244.122
66.138
199.000
278.588
253.048
258.438
231.717
243.056
155.533
106.978
113.216
94.267
307.298
294.833
142.539
296.283
199.897
217.234
198.333
188.455
194.626
290.839
284.222
52.983
272.627
145.120
112.897
97.918
158.739
102.213
164.100
154.729
148.275
111.840
maxS4
0.479
0.501
0.285
0.419
0.483
0.201
0.037
0.305
0.256
0.061
0.239
0.218
0.678
0.223
0.241
0.382
0.251
0.236
0.248
0.550
0.072
0.058
0.983
0.245
0.160
0.151
0.499
0.169
0.226
0.197
0.290
0.149
0.154
0.323
0.173
0.198
0.297
0.205
0.168
0.230
0.253
0.222
maxσφ (°)
2.961
4.570
3.850
4.711
9.846
29.637
32.296
2.530
7.485
22.149
6.342
2.773
7.025
4.898
3.664
4.825
3.418
3.313
2.690
2.824
20.045
30.104
3.902
4.960
1.983
2.197
8.380
8.445
2.345
2.830
2.635
46.317
19.781
4.171
2.355
3.245
2.718
3.466
22.170
12.156
31.244
74.673
PRN
28
7
26
21
8
28
7
8
21
29
29
5
5
5
5
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8
8
9
9
9
9
9
10
10
10
UTC date
2011 10 24
2011 10 26
2011 10 26
2011 10 28
2011 10 30
2011 10 30
2011 10 31
2011 10 31
2011 10 31
2011 10 31
2011 10 31
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
2011 11 1
Start (s)
1003501910
1003663268
1003673263
1003879182
1004011659
1004015905
1004093971
1004097537
1004140033
1004130458
1004131288
1004178667
1004180563
1004183634
1004185682
1004177685
1004178574
1004181520
1004182325
1004184171
1004186781
1004187520
1004187822
1004188350
1004178205
1004178977
1004183349
1004184205
1004185648
1004186639
1004187385
1004188141
1004189668
1004192487
1004194997
1004196566
1004196860
1004199461
1004200032
1004171399
1004177668
1004178171
End (s)
1003502288
1003663495
1003673305
1003879224
1004011768
1004016282
1004094063
1004097579
1004140066
1004130852
1004131414
1004179581
1004180647
1004185304
1004186907
1004177903
1004179934
1004181981
1004183920
1004184985
1004186823
1004187553
1004187889
1004188434
1004178264
1004179925
1004183475
1004185220
1004185942
1004187083
1004187520
1004188183
1004190314
1004192781
1004195055
1004196599
1004197027
1004199696
1004200073
1004171433
1004177911
1004178289
69
Ele (°)
71.453
74.097
65.830
66.233
75.261
55.004
73.357
72.979
76.323
76.901
80.062
33.622
40.898
42.424
34.004
55.943
67.175
77.713
71.466
61.029
44.043
38.509
36.130
32.161
30.395
39.633
70.681
79.626
81.639
75.958
71.638
66.141
51.635
31.168
32.140
43.993
46.761
65.078
67.318
33.696
57.699
56.118
Azi (°)
142.878
185.818
228.718
203.873
213.563
179.679
188.178
217.280
156.610
222.053
199.730
303.887
293.986
256.894
241.517
206.448
199.775
139.422
105.485
94.694
93.443
94.472
95.033
96.098
219.581
221.768
219.769
198.672
145.217
111.450
104.839
101.334
100.771
106.412
285.769
285.386
284.749
266.047
258.126
292.945
232.947
227.278
maxS4
0.182
0.206
0.174
0.224
0.193
0.199
0.217
0.244
0.278
0.292
0.189
0.099
0.053
0.105
0.068
0.063
0.129
0.079
0.064
0.065
0.039
0.081
0.073
0.064
0.053
0.082
0.111
0.166
0.070
0.052
0.045
0.051
0.063
0.283
0.095
0.039
0.151
0.058
0.051
0.043
0.066
0.039
maxσφ (°)
3.554
2.761
1.752
2.882
3.285
3.030
8.787
3.503
2.535
1.893
2.923
22.047
27.928
51.153
70.427
34.057
55.175
24.584
29.076
39.091
17.748
19.778
21.861
19.670
24.806
25.376
18.515
45.096
33.856
23.850
46.921
19.262
57.165
53.035
19.060
16.820
22.609
16.626
15.983
19.610
41.836
20.192
PRN
10
10
13
13
13
15
15
15
15
16
16
17
17
17
17
17
23
23
23
26
26
26
26
26
26
26
28
28
28
28
28
28
28
28
31
31
7
7
9
9
14
23
UTC date
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
2011 11
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
8
8
8
8
8
8
Start (s)
1004178885
1004180211
1004177290
1004177710
1004178473
1004188711
1004192135
1004193746
1004197992
1004174034
1004179875
1004193696
1004194359
1004197036
1004197187
1004199654
1004174983
1004177332
1004178188
1004183542
1004184255
1004187251
1004188921
1004189794
1004192529
1004193847
1004185371
1004186479
1004187889
1004188862
1004190683
1004192093
1004193872
1004196901
1004169184
1004383260
1004782566
1004783506
1004804569
1004804963
1004807481
1004772807
End (s)
1004179841
1004180597
1004177324
1004177970
1004180345
1004190062
1004192806
1004194233
1004198026
1004174857
1004180060
1004194057
1004194602
1004197086
1004197254
1004199687
1004175100
1004177374
1004178557
1004183936
1004184314
1004187520
1004189173
1004192043
1004193016
1004194082
1004185808
1004187570
1004188283
1004190364
1004191086
1004193134
1004194527
1004196935
1004169218
1004384057
1004782600
1004783540
1004804661
1004804997
1004807514
1004773109
70
Ele (°)
50.424
44.293
68.629
64.380
52.819
37.329
51.745
52.500
33.935
33.931
32.367
31.945
36.173
51.934
52.667
57.055
57.336
39.438
31.746
31.763
35.928
58.655
66.090
63.056
51.647
42.634
33.450
44.540
52.629
63.393
70.091
70.993
63.361
44.624
35.789
32.068
69.048
74.943
69.020
68.010
30.854
74.178
Azi (°)
215.728
208.920
118.672
117.151
117.085
296.625
272.821
254.176
219.709
98.270
50.202
150.962
148.620
131.110
129.481
97.480
108.881
110.743
112.735
290.348
290.224
277.385
252.509
217.929
196.995
191.438
185.743
184.007
181.062
171.307
152.981
113.233
89.997
80.346
55.420
310.518
197.219
182.094
224.715
216.777
304.504
213.735
maxS4
0.050
0.050
0.039
0.043
0.067
0.095
0.072
0.086
0.058
0.068
0.095
0.099
0.064
0.150
0.227
0.044
0.031
0.043
0.082
0.075
0.087
0.052
0.098
0.135
0.070
0.058
0.088
0.089
0.053
0.210
0.106
0.089
0.092
0.090
0.053
0.378
0.170
0.175
0.228
0.215
0.167
0.258
maxσφ (°)
36.548
25.425
37.615
60.717
38.969
50.716
27.433
25.098
17.510
24.344
79.199
18.734
19.024
6.205
93.705
20.161
16.171
21.494
34.720
37.888
27.715
47.621
28.457
54.335
29.272
23.970
38.670
58.089
36.069
37.596
34.358
43.460
29.892
20.622
16.028
4.319
8.107
2.258
1.437
1.589
3.895
14.427
PRN
26
7
9
25
25
25
7
8
8
8
17
26
5
15
15
25
29
30
22
22
22
12
12
12
25
32
7
8
10
15
26
28
16
21
21
8
9
12
12
15
17
25
UTC date
2011 11 8
2011 11 15
2011 11 15
2011 11 15
2011 11 15
2011 11 21
2011 11 22
2011 11 22
2011 11 22
2011 11 22
2011 11 22
2011 11 22
2011 11 23
2011 11 23
2011 11 23
2011 11 23
2011 11 23
2011 11 23
2011 11 25
2011 11 25
2011 11 25
2011 11 27
2011 11 27
2011 11 27
2011 11 27
2011 11 27
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 29
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
Start (s)
1004794935
1005386399
1005402444
1005410894
1005416718
1005935546
1005989042
1005992499
1005993120
1005994530
1006006496
1005997500
1006113538
1006126990
1006127896
1006113538
1006113547
1006113538
1006218187
1006219446
1006219806
1006446378
1006447318
1006450993
1006451421
1006395835
1006590863
1006596611
1006591064
1006607008
1006603198
1006600899
1006634811
1006637093
1006637488
1006690738
1006699952
1006706842
1006707278
1006690848
1006703041
1006708629
End (s)
1004795590
1005386432
1005402477
1005410936
1005416986
1005935580
1005989704
1005992725
1005994018
1005994597
1006006588
1005997567
1006113639
1006127259
1006127938
1006113580
1006113580
1006113631
1006218799
1006219496
1006220050
1006446495
1006447360
1006451446
1006451631
1006395885
1006591131
1006596779
1006591106
1006607109
1006603702
1006602132
1006634844
1006637127
1006637555
1006691124
1006700137
1006706909
1006707597
1006691737
1006703124
1006709032
71
Ele (°)
55.808
73.987
41.895
30.226
71.889
72.954
73.342
69.619
76.725
81.743
53.217
63.674
36.380
31.537
30.142
31.822
80.418
43.722
70.302
66.360
63.821
75.266
79.537
58.462
74.451
41.728
63.239
76.765
53.555
50.938
62.054
59.451
38.393
71.991
73.972
33.599
68.950
78.301
75.202
52.121
30.769
70.848
Azi (°)
201.241
185.734
285.661
271.425
247.726
198.846
187.707
221.136
209.798
177.571
127.248
265.723
95.542
59.261
53.029
163.468
170.262
292.184
122.747
106.065
100.772
244.433
217.834
142.148
224.558
241.586
202.797
210.975
220.697
246.299
212.382
176.458
301.555
192.684
184.848
106.067
223.529
172.621
158.488
269.761
62.132
252.238
maxS4
0.206
0.207
0.234
0.156
0.173
0.174
0.322
0.243
0.325
0.229
0.163
0.166
0.340
0.281
0.225
0.235
0.163
0.431
0.286
0.195
0.202
0.276
0.183
0.187
0.261
0.253
0.356
0.356
0.088
0.162
0.213
0.284
0.165
0.187
0.171
0.050
0.183
0.160
0.270
0.131
0.124
0.332
maxσφ (°)
3.257
4.775
2.364
2.298
1.788
3.774
9.496
2.119
10.487
1.925
3.734
3.299
6.838
3.683
4.137
7.676
3.463
6.294
2.878
2.325
2.525
3.256
2.228
2.617
1.753
3.866
32.549
10.807
23.000
2.298
3.856
6.956
2.334
5.725
1.971
43.504
3.112
2.892
4.267
28.691
21.814
3.033
PRN
25
26
28
28
29
31
31
20
20
20
18
21
22
1
7
14
8
18
20
20
32
3
2
2
2
2
4
5
9
9
9
12
12
12
12
15
17
17
17
17
17
20
UTC date
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 11 30
2011 12 1
2011 12 1
2011 12 1
2011 12 3
2011 12 2
2011 12 3
2011 12 3
2011 12 3
2011 12 3
2011 12 4
2011 12 10
2011 12 11
2011 12 12
2011 12 12
2011 12 19
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
Start (s)
1006709443
1006691603
1006690948
1006691745
1006714520
1006709578
1006710039
1006748865
1006749931
1006750308
1006906968
1006895866
1006906464
1006910407
1006936908
1006917087
1007027234
1007593107
1007611282
1007697627
1007694522
1008361352
1011529500
1011531061
1011533092
1011535374
1011526983
1011540946
1011522695
1011524826
1011526152
1011526286
1011528309
1011531967
1011533033
1011520983
1011520471
1011522854
1011524297
1011525002
1011526739
1011488709
End (s)
1006710878
1006691955
1006691410
1006692232
1006714571
1006709628
1006710073
1006749293
1006749981
1006750518
1006907320
1006895899
1006906666
1006910600
1006937009
1006917129
1007027419
1007593141
1007611458
1007697761
1007694556
1008361386
1011530088
1011532773
1011535165
1011535567
1011527948
1011540980
1011522846
1011525556
1011530239
1011527839
1011528821
1011532672
1011535089
1011521889
1011520572
1011522896
1011524331
1011525120
1011526807
1011489002
72
Ele (°)
74.524
47.606
71.056
67.753
71.841
30.604
32.769
75.121
75.200
73.750
39.238
73.517
70.783
33.994
72.792
44.037
75.649
58.741
75.458
75.216
79.261
32.223
32.100
44.973
52.741
52.632
32.790
35.336
66.046
67.213
46.365
59.007
70.447
72.068
58.677
33.242
53.975
55.841
50.625
46.658
35.901
74.747
Azi (°)
218.882
193.892
112.886
98.584
234.041
312.235
309.602
219.949
193.029
180.765
75.181
187.022
149.554
287.220
189.089
66.347
213.767
92.905
200.126
195.306
166.004
290.627
143.188
130.320
108.418
91.971
117.828
95.891
263.500
211.301
184.627
259.243
253.214
149.649
140.689
220.897
122.893
91.687
76.183
70.626
63.204
195.486
maxS4
0.330
0.049
0.065
0.048
0.176
0.198
0.196
0.191
0.300
0.186
0.188
0.179
0.157
0.195
0.169
0.223
0.170
0.214
0.286
0.183
0.175
0.205
0.097
0.064
0.071
0.051
0.117
0.213
0.040
0.162
0.149
0.096
0.076
0.054
0.222
0.054
0.075
0.049
0.042
0.083
0.055
0.725
maxσφ (°)
6.376
28.220
23.180
32.881
2.091
9.358
6.184
3.191
4.953
2.622
3.338
2.302
2.501
2.945
31.007
2.633
16.302
2.118
4.161
2.063
2.208
2.984
39.059
48.921
36.415
25.901
54.921
2.360
37.734
29.775
60.064
46.578
26.150
27.067
38.436
33.661
18.290
17.438
16.680
25.702
31.743
7.701
PRN
20
25
25
25
25
27
27
27
27
27
29
29
29
31
31
31
19
20
20
22
22
32
7
13
23
12
2
16
19
22
22
2
2
29
26
32
26
26
23
20
2
12
UTC date
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 25
2012 1 28
2012 1 30
2012 1 31
2012 1 31
2012 1 30
2012 1 30
2012 1 30
2012 1 31
2012 1 31
2012 1 31
2012 2 1
2012 2 5
2012 2 6
2012 2 6
2012 2 6
2012 2 6
2012 2 7
2012 2 7
2012 2 7
2012 2 8
2012 2 8
2012 2 9
2012 2 9
2012 2 10
2012 2 12
2012 2 13
2012 2 13
Start (s)
1011489665
1011528225
1011531867
1011537095
1011537716
1011520991
1011522233
1011525162
1011526622
1011528216
1011534418
1011535408
1011539788
1011533965
1011536583
1011792525
1011988829
1012005646
1012006275
1011988619
1011991724
1012001047
1012018735
1012013331
1012008775
1012134070
1012486976
1012582077
1012589462
1012591131
1012592550
1012658103
1012659571
1012660763
1012718756
1012776608
1012800037
1012809997
1012872520
1013125709
1013171862
1013172273
End (s)
1011489749
1011529165
1011532664
1011537279
1011537758
1011521058
1011523005
1011525565
1011527956
1011528409
1011534930
1011535802
1011541232
1011534988
1011536784
1011792558
1011988862
1012005713
1012006854
1011988997
1011991757
1012002818
1012018769
1012013944
1012009043
1012134472
1012487681
1012582110
1012589503
1012591190
1012592801
1012658170
1012659630
1012660922
1012721920
1012776818
1012802294
1012810551
1012872554
1013125793
1013171896
1013172315
73
Ele (°)
71.520
35.601
62.003
64.528
60.553
72.858
71.063
53.546
38.824
30.970
37.530
44.633
79.803
33.743
40.415
31.947
56.900
74.947
72.022
67.365
67.111
79.695
64.545
72.631
65.819
78.702
32.649
48.899
44.941
63.602
70.482
41.883
32.860
80.639
61.481
77.726
47.398
35.549
79.051
74.874
53.087
47.474
Azi (°)
175.140
272.791
268.112
175.754
171.491
240.651
201.828
175.489
171.933
171.465
238.905
240.411
204.277
308.269
290.599
310.550
267.887
199.731
177.402
168.501
108.416
193.163
200.784
239.061
224.943
172.086
62.084
274.773
290.256
177.385
153.046
68.150
62.161
188.921
213.844
216.695
287.218
188.490
191.560
200.267
97.752
139.694
maxS4
0.204
0.099
0.044
0.262
0.220
0.084
0.154
0.083
0.075
0.083
0.118
0.134
0.416
0.068
0.055
0.191
0.192
0.699
0.251
0.184
0.168
0.285
0.172
0.291
0.243
0.209
0.081
0.192
0.267
0.260
0.199
0.068
0.097
0.093
0.043
0.222
0.067
0.063
0.214
0.191
0.033
0.043
maxσφ (°)
2.005
56.828
32.644
4.992
3.836
49.681
35.060
48.294
41.700
18.478
26.893
17.991
9.040
26.816
29.549
2.772
2.011
11.641
2.437
4.199
2.407
3.283
1.661
3.264
1.873
15.868
30.516
2.374
2.529
2.570
1.856
21.387
18.791
22.243
55.707
2.369
41.684
38.839
1.720
1.966
22.745
20.711
PRN
25
31
4
20
23
2
2
3
3
4
4
5
5
5
6
6
6
8
8
10
12
12
12
12
12
13
15
16
21
21
21
21
21
21
21
23
25
25
25
25
25
27
UTC date
2012 2 13
2012 2 13
2012 2 15
2012 2 14
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
Start (s)
1013172022
1013173599
1013301511
1013298054
1013302401
1013340632
1013341673
1013358120
1013359371
1013340943
1013342629
1013349074
1013350173
1013355250
1013356257
1013356996
1013359857
1013316951
1013325225
1013305010
1013340573
1013341178
1013341773
1013343435
1013346724
1013307267
1013324940
1013354378
1013351289
1013353404
1013353832
1013354856
1013357004
1013357944
1013359790
1013304137
1013339172
1013340926
1013341799
1013347891
1013349351
1013324923
End (s)
1013172055
1013173641
1013301847
1013298113
1013302829
1013340959
1013342848
1013358808
1013359522
1013342319
1013342680
1013349217
1013350811
1013355460
1013356778
1013358565
1013359916
1013317169
1013325284
1013305043
1013340632
1013341396
1013342713
1013344241
1013346817
1013307309
1013324982
1013359161
1013353043
1013353471
1013354411
1013356660
1013357424
1013358540
1013360017
1013304196
1013339206
1013341152
1013342722
1013348453
1013349401
1013324973
74
Ele (°)
74.181
40.705
37.174
74.845
75.556
43.080
49.646
32.617
39.537
42.255
38.832
31.174
36.324
30.791
31.952
40.821
54.745
77.167
32.443
43.140
77.501
73.171
66.602
53.459
30.523
81.107
50.261
46.359
36.882
46.843
51.909
63.500
72.687
76.126
72.141
79.751
43.938
57.719
65.716
52.171
42.642
40.941
Azi (°)
219.195
289.595
294.049
199.966
210.615
133.057
120.752
290.776
288.548
73.495
64.763
103.006
92.457
51.394
285.073
283.956
275.273
211.902
107.401
288.801
163.790
150.612
143.145
139.460
142.198
212.060
276.529
281.216
212.072
212.214
211.612
205.712
190.014
164.707
121.576
154.881
274.046
271.304
263.649
167.392
165.181
277.713
maxS4
0.060
0.034
0.201
0.207
0.573
0.045
0.049
0.058
0.040
0.075
0.054
0.133
0.073
0.061
0.063
0.056
0.043
0.065
0.061
0.167
0.026
0.028
0.038
0.044
0.052
0.165
0.055
0.057
0.094
0.042
0.064
0.053
0.055
0.085
0.040
0.165
0.047
0.047
0.037
0.037
0.050
0.071
maxσφ (°)
16.239
18.616
4.295
2.765
6.746
21.245
37.215
33.554
17.191
38.885
35.748
18.510
35.396
28.199
31.877
40.803
22.197
102.693
16.704
2.553
18.491
17.238
30.566
26.904
21.359
4.844
46.710
43.703
38.589
22.475
20.783
27.170
26.845
23.938
16.322
10.646
29.385
22.544
27.542
29.943
20.302
34.756
PRN
28
29
29
29
29
29
29
29
29
30
30
30
30
31
31
31
7
7
8
2
2
2
4
4
5
5
5
5
12
16
16
21
25
25
25
25
25
29
29
29
29
30
UTC date
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 15
2012 2 19
2012 2 19
2012 2 19
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
Start (s)
1013324931
1013342889
1013345625
1013347924
1013348864
1013349317
1013350106
1013353018
1013353580
1013352808
1013353396
1013355544
1013358448
1013346901
1013348336
1013349124
1013656726
1013658388
1013661551
1013774829
1013777380
1013778202
1013770129
1013774812
1013780392
1013781139
1013783027
1013784420
1013771447
1013783984
1013786896
1013787710
1013770524
1013771925
1013774267
1013775676
1013781265
1013780560
1013781450
1013782809
1013784647
1013780409
End (s)
1013325007
1013343787
1013345751
1013347958
1013348915
1013349578
1013350903
1013353186
1013357407
1013353178
1013354621
1013355653
1013358867
1013346943
1013348369
1013349527
1013656768
1013658421
1013661585
1013774871
1013777699
1013779696
1013770507
1013775173
1013780795
1013781206
1013783069
1013784487
1013771539
1013784118
1013786980
1013787760
1013770574
1013771967
1013774350
1013775911
1013781433
1013781047
1013781601
1013782860
1013784681
1013780678
75
Ele (°)
71.999
33.496
51.462
68.842
75.525
78.712
80.418
64.185
46.416
48.609
50.846
49.483
34.142
40.894
37.984
34.222
72.303
77.528
76.353
53.110
45.025
36.905
43.327
31.313
34.070
36.061
38.867
36.897
76.659
31.409
46.329
71.426
48.123
58.493
72.734
72.921
33.352
80.616
79.644
71.881
57.989
31.394
Azi (°)
119.440
237.695
241.122
237.073
226.684
213.344
167.672
122.838
122.171
281.695
270.055
250.571
225.097
279.902
266.652
258.889
188.761
140.611
214.104
98.889
71.728
64.213
95.308
55.357
97.759
93.011
75.783
63.148
159.833
306.744
288.272
193.990
273.999
270.922
242.360
201.948
164.666
189.548
156.829
128.821
121.412
302.714
maxS4
0.052
0.049
0.033
0.044
0.031
0.026
0.064
0.040
0.072
0.053
0.061
0.048
0.072
0.061
0.052
0.081
0.085
0.048
0.129
0.106
0.098
0.094
0.067
0.069
0.089
0.051
0.048
0.040
0.072
0.053
0.064
0.266
0.034
0.024
0.023
0.277
0.042
0.193
0.045
0.028
0.029
0.081
maxσφ (°)
17.737
53.877
25.312
20.865
32.150
24.908
30.802
34.422
38.254
55.263
43.230
25.744
16.311
47.292
16.787
28.909
21.555
21.494
16.527
20.410
22.287
25.077
26.263
22.999
34.130
23.194
22.461
27.376
19.110
25.799
18.664
9.945
15.860
23.543
17.456
13.048
25.855
43.161
32.946
21.265
20.278
46.945
PRN
30
30
30
30
31
31
2
3
6
15
16
18
18
19
21
21
21
21
21
21
21
29
30
2
2
2
2
2
3
3
3
3
3
4
4
4
5
5
5
5
5
6
UTC date
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 2 20
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 8
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
Start (s)
1013781408
1013782322
1013783984
1013784781
1013773679
1013780871
1015240485
1015257881
1015257881
1015259567
1015252720
1015252770
1015258208
1015258678
1015249330
1015249707
1015250421
1015254063
1015254658
1015258040
1015259022
1015252737
1015252611
1015320394
1015322333
1015327762
1015328996
1015329701
1015339762
1015340073
1015340576
1015341248
1015343186
1015318036
1015319773
1015322249
1015331631
1015333452
1015334350
1015335566
1015336305
1015339896
End (s)
1013781869
1013782641
1013784051
1013785008
1013773788
1013780913
1015240535
1015257973
1015257973
1015259601
1015252770
1015252879
1015258712
1015259156
1015249363
1015249783
1015253030
1015254222
1015254700
1015258569
1015259056
1015252879
1015252837
1015321544
1015322492
1015328308
1015329306
1015330112
1015339838
1015340207
1015340937
1015341508
1015343899
1015319127
1015321401
1015322291
1015332587
1015333485
1015334400
1015335625
1015336800
1015340048
76
Ele (°)
38.133
43.125
49.441
50.992
30.772
30.304
51.533
56.948
64.371
32.588
49.082
30.545
62.569
34.838
50.957
53.900
67.413
76.091
74.728
51.520
46.146
30.693
41.960
34.934
43.559
46.322
40.286
35.659
30.758
33.178
37.529
41.831
54.725
33.944
42.237
43.960
36.566
38.712
38.319
35.564
31.905
45.009
Azi (°)
298.317
292.924
278.793
268.433
311.785
253.273
86.405
266.161
241.658
63.215
275.098
169.218
126.614
295.854
211.585
210.994
199.449
147.829
133.169
102.865
102.733
125.276
233.009
140.819
132.237
73.610
66.636
63.445
291.215
290.736
289.435
287.433
272.452
117.669
100.146
83.331
90.909
78.417
69.950
59.587
52.862
282.590
maxS4
0.086
0.051
0.035
0.062
0.059
0.067
0.052
0.034
0.068
0.048
0.282
0.187
0.061
0.048
0.069
0.093
0.360
0.064
0.083
0.042
0.063
0.220
0.134
0.071
0.043
0.062
0.078
0.076
0.067
0.097
0.047
0.084
0.051
0.152
0.073
0.036
0.087
0.061
0.062
0.102
0.068
0.068
maxσφ (°)
35.399
36.782
17.242
25.311
16.164
26.497
30.647
17.937
19.086
16.841
25.753
23.574
18.505
19.967
22.872
15.914
116.995
16.312
16.160
22.668
15.873
33.951
31.742
45.706
44.579
39.609
24.164
23.675
17.456
115.169
36.542
102.224
26.670
75.556
43.132
23.056
44.265
19.977
23.702
38.855
32.602
19.370
PRN
6
6
6
6
7
8
8
8
9
9
9
9
9
9
9
12
12
12
12
12
12
12
12
14
14
15
15
15
16
16
16
16
17
17
18
18
19
19
21
21
21
21
UTC date
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
2012 3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Start (s)
1015340778
1015341264
1015343329
1015346031
1015298794
1015299096
1015301505
1015303309
1015308990
1015312372
1015314789
1015315502
1015317793
1015319715
1015320780
1015313824
1015315510
1015318557
1015319278
1015320453
1015320713
1015322333
1015327712
1015318229
1015318783
1015303259
1015311533
1015311869
1015339083
1015339997
1015342313
1015343396
1015309292
1015312338
1015339578
1015342523
1015347424
1015347801
1015332688
1015336649
1015337648
1015341298
End (s)
1015340962
1015341541
1015343765
1015346131
1015298828
1015299130
1015301673
1015303653
1015309628
1015312968
1015314822
1015315922
1015318892
1015320185
1015320982
1015313891
1015315578
1015318750
1015319723
1015320537
1015321737
1015322383
1015328199
1015318422
1015319211
1015303376
1015311566
1015312540
1015339124
1015340123
1015343085
1015343690
1015309427
1015312775
1015341776
1015342641
1015347457
1015347852
1015336338
1015337085
1015340979
1015341726
77
Ele (°)
50.990
54.308
63.709
59.372
56.037
79.916
73.716
58.924
35.554
61.334
69.877
68.204
51.237
38.384
30.953
30.762
43.432
67.474
73.639
79.307
80.375
75.410
32.166
30.167
30.505
33.544
38.442
34.388
49.221
48.573
37.967
32.895
44.296
56.531
42.661
54.879
49.873
51.879
43.561
60.922
74.667
71.593
Azi (°)
278.998
275.767
250.754
210.676
92.243
201.220
108.131
101.542
285.466
273.995
235.762
214.828
185.262
180.336
179.042
253.434
256.983
255.276
247.815
224.093
191.527
154.524
141.164
307.178
301.705
299.660
226.823
223.139
272.707
261.612
237.494
232.451
139.519
105.391
164.113
152.279
284.881
281.647
211.732
208.102
172.250
119.794
maxS4
0.062
0.095
0.039
0.031
0.040
0.043
0.082
0.165
0.094
0.038
0.107
0.140
0.181
0.079
0.082
0.045
0.046
0.050
0.090
0.045
0.073
0.116
0.109
0.125
0.103
0.174
0.087
0.057
0.063
0.038
0.103
0.062
0.039
0.040
0.287
0.040
0.036
0.035
0.182
0.140
0.132
0.145
maxσφ (°)
31.134
130.630
40.251
23.291
19.057
18.110
57.311
33.128
92.525
33.257
18.974
38.160
54.334
31.277
27.452
19.430
63.668
28.301
20.643
34.801
59.162
52.773
151.809
58.963
47.811
20.075
16.916
16.540
39.998
23.692
22.285
22.542
46.245
31.302
167.601
19.912
18.287
18.253
174.142
80.273
75.745
102.483
PRN
21
22
22
25
25
25
25
25
25
25
26
27
27
27
27
28
28
28
28
29
29
29
29
29
29
30
30
30
30
31
31
31
31
2
2
5
9
9
12
12
13
17
UTC date
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 9
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
Start (s)
1015343916
1015343547
1015345628
1015318976
1015320394
1015320999
1015326503
1015327703
1015329650
1015331303
1015302436
1015309024
1015312322
1015315536
1015317919
1015302403
1015309250
1015312439
1015312876
1015327695
1015328870
1015329676
1015331555
1015333393
1015335818
1015333250
1015335885
1015338621
1015339376
1015327779
1015328811
1015329776
1015330565
1015411336
1015415029
1015420425
1015398237
1015401006
1015411521
1015412729
1015459068
1015398254
End (s)
1015343958
1015344092
1015345997
1015320059
1015320646
1015321569
1015326713
1015329281
1015329717
1015332587
1015303410
1015309343
1015312976
1015315578
1015318959
1015302906
1015309368
1015312473
1015312917
1015328601
1015329046
1015329869
1015332445
1015334123
1015336070
1015334048
1015335952
1015338839
1015340769
1015328450
1015328996
1015329852
1015330666
1015411890
1015415197
1015421012
1015398615
1015401057
1015412352
1015414013
1015459773
1015398413
78
Ele (°)
55.364
32.371
47.473
34.017
41.406
47.107
72.984
62.280
53.255
35.383
66.270
59.690
73.267
57.418
35.487
55.602
57.847
35.474
32.357
59.015
65.270
71.351
80.384
70.449
53.688
45.415
51.237
42.762
34.725
41.240
40.477
38.232
35.228
53.087
41.404
38.044
58.630
69.878
49.069
37.797
69.067
56.170
Azi (°)
103.430
193.617
190.774
273.289
274.289
274.343
203.581
174.615
168.435
165.121
251.594
274.091
216.414
176.901
171.134
181.083
84.631
81.655
82.223
240.720
238.995
234.126
167.059
126.863
121.080
289.417
264.615
234.138
225.196
282.396
274.752
266.442
259.927
100.694
67.633
68.214
277.428
233.974
138.669
140.078
242.128
110.518
maxS4
0.034
0.096
0.071
0.072
0.053
0.055
0.264
0.227
0.124
0.068
0.204
0.037
0.087
0.052
0.194
0.161
0.031
0.040
0.069
0.108
0.045
0.054
0.130
0.059
0.104
0.051
0.061
0.067
0.120
0.113
0.038
0.055
0.050
0.040
0.047
0.045
0.029
0.056
0.046
0.077
0.029
0.037
maxσφ (°)
20.894
39.191
15.771
26.953
37.268
36.934
33.112
139.676
43.209
54.576
125.107
37.335
30.246
33.987
101.647
65.579
18.215
19.020
20.179
73.471
18.532
42.702
36.267
49.501
23.341
84.831
26.090
30.094
178.378
44.602
29.072
23.826
31.158
26.622
18.288
16.070
168.229
28.827
38.884
27.502
42.575
132.609
PRN
25
25
25
27
28
29
29
29
29
31
31
31
2
2
2
5
5
5
12
12
21
21
25
25
25
25
25
25
29
29
30
31
31
31
28
3
3
3
3
3
3
3
UTC date
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 10
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 12
2012 3 14
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
Start (s)
1015411513
1015413107
1015413745
1015398204
1015398329
1015411739
1015412587
1015413057
1015413955
1015412025
1015413376
1015414215
1015586048
1015588456
1015589027
1015589665
1015590495
1015591242
1015579569
1015586048
1015591200
1015596999
1015587902
1015588523
1015588976
1015589858
1015590193
1015590730
1015587894
1015588993
1015591410
1015586350
1015588490
1015589354
1015736063
1015857101
1015859770
1015860206
1015860819
1015861868
1015862673
1015864016
End (s)
1015412251
1015413233
1015414173
1015398590
1015398623
1015412293
1015412746
1015413644
1015414274
1015412276
1015413669
1015414542
1015586081
1015588708
1015589102
1015589950
1015590747
1015591578
1015579603
1015586182
1015591318
1015597494
1015588204
1015588758
1015589371
1015589891
1015590302
1015591083
1015588632
1015591527
1015591771
1015586392
1015588767
1015589505
1015736130
1015858427
1015859895
1015860474
1015861037
1015862119
1015863504
1015864368
79
Ele (°)
73.927
71.423
67.019
73.615
36.447
41.343
46.336
51.635
57.581
37.661
40.894
41.209
48.279
34.288
31.155
34.081
36.698
38.258
80.470
34.331
31.044
73.004
54.080
49.472
45.251
39.695
36.750
31.588
71.643
80.673
42.840
41.268
37.013
33.645
71.333
38.038
51.404
54.068
56.609
59.198
58.551
54.718
Azi (°)
228.166
194.380
181.495
227.233
81.511
239.253
240.175
240.804
240.845
301.561
289.581
281.292
77.137
62.728
61.389
97.191
90.392
83.226
195.197
140.637
211.405
188.499
168.866
167.188
166.209
165.465
165.250
165.077
233.701
175.850
293.378
284.304
263.384
257.247
150.091
289.264
278.527
273.881
267.292
252.419
235.713
221.328
maxS4
0.032
0.031
0.032
0.050
0.048
0.045
0.052
0.062
0.030
0.046
0.035
0.051
0.061
0.131
0.121
0.110
0.066
0.067
0.071
0.058
0.086
0.283
0.146
0.119
0.114
0.042
0.056
0.101
0.147
0.284
0.090
0.076
0.107
0.064
0.186
0.080
0.048
0.043
0.058
0.328
0.214
0.042
maxσφ (°)
28.129
27.184
17.807
151.530
115.462
40.700
36.489
26.757
16.965
18.056
28.263
19.397
17.472
24.750
21.941
25.080
20.378
59.747
16.506
22.268
27.956
8.076
47.763
22.625
27.897
18.624
18.479
25.060
26.266
59.199
17.982
27.734
21.932
22.187
2.101
45.254
24.869
36.593
25.828
21.204
97.607
28.900
PRN
3
3
5
5
5
6
6
6
6
6
6
6
6
6
6
11
11
11
11
14
15
15
15
16
16
16
18
18
18
18
18
18
18
18
19
19
19
19
19
21
21
21
UTC date
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
Start (s)
1015865367
1015866391
1015849398
1015851965
1015853770
1015855372
1015857680
1015859291
1015859946
1015861012
1015861674
1015862648
1015864116
1015865300
1015866760
1015867389
1015868002
1015868547
1015868984
1015868690
1015860609
1015862237
1015862958
1015851764
1015854365
1015859040
1015858972
1015860105
1015861951
1015862883
1015864469
1015865669
1015866802
1015868094
1015862791
1015863940
1015864771
1015866424
1015867171
1015857965
1015858981
1015860407
End (s)
1015865484
1015867045
1015849792
1015853526
1015853820
1015855490
1015858268
1015859325
1015860533
1015861104
1015862228
1015863865
1015864754
1015865333
1015867062
1015867465
1015868044
1015868614
1015869017
1015868723
1015861448
1015862312
1015864133
1015852872
1015854735
1015860575
1015859417
1015861280
1015862027
1015863605
1015864704
1015865904
1015866835
1015868346
1015863529
1015864427
1015865316
1015866474
1015867515
1015858427
1015859560
1015860877
80
Ele (°)
47.899
38.397
37.820
34.730
30.368
34.749
52.094
59.614
63.140
64.376
63.371
57.957
50.975
44.910
33.316
30.361
34.502
38.333
41.172
35.106
31.605
32.820
31.495
35.347
46.353
36.884
53.062
60.412
62.926
60.922
54.958
47.780
40.967
31.365
42.407
48.670
53.087
57.443
57.669
72.767
66.440
56.863
Azi (°)
210.065
202.119
85.704
57.746
50.827
285.023
278.061
267.000
254.554
240.876
225.577
208.142
198.092
193.422
188.416
284.421
283.598
282.376
281.106
150.443
77.490
66.942
56.449
304.126
288.500
236.180
154.924
139.141
119.413
100.325
86.045
78.860
75.640
74.062
292.287
286.487
279.195
262.147
249.327
123.580
110.142
103.787
maxS4
0.037
0.083
0.068
0.094
0.063
0.050
0.065
0.046
0.048
0.213
0.134
0.092
0.048
0.042
0.077
0.164
0.053
0.051
0.100
0.060
0.073
0.119
0.102
0.085
0.043
0.076
0.040
0.063
0.049
0.037
0.057
0.089
0.088
0.088
0.081
0.055
0.047
0.117
0.129
0.095
0.133
0.036
maxσφ (°)
17.206
20.321
19.270
85.005
18.510
16.579
27.797
16.411
50.405
38.010
37.971
43.703
23.088
17.412
22.271
20.637
27.145
17.159
19.362
17.333
73.544
21.565
35.462
61.236
18.569
51.572
28.193
45.417
18.537
30.549
18.851
41.524
20.068
28.490
53.451
26.151
20.826
32.706
25.389
21.089
51.816
28.762
PRN
21
21
22
22
22
22
22
22
29
29
29
30
30
2
2
2
3
4
4
4
4
4
4
6
8
12
12
12
14
16
17
25
25
25
25
29
2
2
5
7
7
8
UTC date
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 15
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 16
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
Start (s)
1015861137
1015862698
1015860525
1015862581
1015863747
1015866592
1015867238
1015867658
1015850371
1015851772
1015852427
1015850472
1015851428
1015924318
1015925300
1015926836
1015943418
1015921071
1015923899
1015924318
1015925174
1015926702
1015928959
1015941328
1015901040
1015921121
1015923932
1015926836
1015921256
1015940959
1015921155
1015923966
1015924318
1015924981
1015925342
1015940808
1016016050
1016019549
1016019717
1015982610
1015983222
1015987493
End (s)
1015861339
1015863957
1015862144
1015863042
1015864914
1015866869
1015867347
1015867868
1015851042
1015851806
1015852461
1015851084
1015851470
1015924402
1015925795
1015927096
1015943477
1015921256
1015923966
1015924444
1015926056
1015926844
1015929043
1015941580
1015901082
1015921297
1015924503
1015927113
1015921373
1015941127
1015921339
1015924008
1015924428
1015925040
1015925376
1015941035
1016016168
1016019902
1016019910
1015982685
1015983608
1015988324
81
Ele (°)
52.517
37.154
36.800
47.993
59.016
70.890
71.265
70.620
70.120
61.906
56.824
46.421
48.972
36.932
43.879
50.237
34.702
31.340
42.865
43.612
43.578
40.856
30.373
33.813
72.063
63.864
80.458
63.731
30.164
47.417
31.146
44.010
46.896
51.660
54.259
38.892
50.907
31.842
30.882
70.981
75.370
77.883
Azi (°)
102.892
103.749
193.180
190.618
183.715
149.315
136.232
125.547
126.395
121.735
121.001
287.525
280.947
139.189
131.749
119.044
290.380
120.489
97.663
93.025
80.077
69.087
54.564
285.093
221.282
257.012
193.059
140.173
307.534
285.138
61.546
274.508
274.452
273.827
273.122
123.110
84.052
61.633
102.733
191.235
176.383
210.101
maxS4
0.065
0.112
0.123
0.058
0.062
0.142
0.120
0.145
0.050
0.028
0.047
0.173
0.031
0.056
0.059
0.098
0.038
0.099
0.048
0.059
0.069
0.040
0.085
0.054
0.237
0.046
0.076
0.032
0.052
0.048
0.090
0.033
0.036
0.037
0.023
0.045
0.034
0.127
0.050
0.283
0.237
0.196
maxσφ (°)
44.040
37.766
50.257
41.621
32.888
40.891
24.679
26.866
25.373
19.286
21.376
26.474
17.643
105.921
28.638
21.550
15.927
56.087
61.966
36.057
32.529
23.313
23.332
21.709
5.473
166.192
96.255
18.846
114.022
23.095
85.054
21.298
30.673
17.093
21.981
21.920
67.651
19.320
19.288
6.133
11.271
25.058
PRN
12
12
17
17
25
25
27
28
29
29
31
31
31
31
2
2
12
25
31
13
8
27
29
29
29
21
21
20
5
1
1
1
1
1
1
2
11
11
11
11
11
11
UTC date
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 17
2012 3 18
2012 3 18
2012 3 18
2012 3 18
2012 3 18
2012 3 21
2012 3 23
2012 3 23
2012 3 23
2012 3 23
2012 3 23
2012 6 10
2012 6 10
2012 6 11
2012 6 15
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
Start (s)
1016015538
1016016755
1016002431
1016005611
1016016050
1016017384
1016002531
1016002221
1016015614
1016017418
1016015832
1016016512
1016017024
1016017502
1016101148
1016102298
1016101811
1016101442
1016101031
1016407061
1016502963
1016518462
1016535396
1016536185
1016537335
1023351039
1023352063
1023464669
1023829010
1023968361
1023969444
1023971424
1023973832
1023976400
1023977013
1023989902
1023967312
1023968361
1023969486
1023973849
1023975402
1023976744
End (s)
1016016260
1016016805
1016002473
1016005645
1016016587
1016017502
1016002565
1016002280
1016017057
1016017577
1016015874
1016016654
1016017141
1016017670
1016101417
1016102357
1016102113
1016101484
1016101879
1016407757
1016502996
1016518655
1016535564
1016536521
1016537368
1023351417
1023352113
1023464795
1023829044
1023968520
1023969947
1023971466
1023974361
1023976610
1023978120
1023989936
1023967824
1023968730
1023969955
1023974193
1023975536
1023977533
82
Ele (°)
41.735
34.892
56.234
42.767
71.230
64.522
71.394
31.676
51.090
60.132
39.609
40.943
41.296
41.174
52.882
50.711
42.400
73.981
38.007
70.598
62.888
73.496
68.390
74.632
79.931
74.471
75.946
74.312
35.267
31.209
40.384
52.426
65.421
60.661
54.226
30.463
42.032
48.267
54.834
53.036
44.473
32.470
Azi (°)
139.203
140.364
96.162
66.962
193.866
177.603
202.451
82.418
240.645
240.423
296.193
289.520
284.713
279.787
95.254
83.392
139.070
219.514
300.618
241.234
226.008
225.418
236.827
228.252
201.729
177.618
153.508
199.294
240.606
286.490
285.868
280.578
250.337
209.059
198.700
293.375
280.573
275.836
265.908
210.315
199.570
192.296
maxS4
0.048
0.047
0.027
0.038
0.032
0.029
0.067
0.066
0.061
0.041
0.036
0.034
0.034
0.055
0.037
0.031
0.038
0.018
0.048
0.044
0.219
0.191
0.209
0.232
0.172
0.251
0.261
0.355
0.172
0.076
0.066
0.039
0.237
0.066
0.051
0.061
0.247
0.092
0.069
0.124
0.069
0.081
maxσφ (°)
33.925
19.784
26.158
24.854
23.753
22.157
19.019
16.381
31.836
26.732
20.223
20.953
18.973
26.145
15.309
18.035
15.398
17.199
21.805
35.179
3.291
1.631
6.077
7.607
7.637
3.020
2.391
5.318
2.509
67.293
92.270
24.131
37.432
21.198
41.517
18.594
152.301
94.839
158.658
29.429
17.042
29.128
PRN
13
14
14
14
15
17
19
19
19
20
20
20
20
20
21
22
22
22
22
30
32
32
32
32
2
4
12
12
12
12
17
20
25
20
4
22
20
20
3
3
6
1
UTC date
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 17
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 18
2012 6 22
2012 6 23
2012 6 23
2012 6 25
2012 6 25
2012 6 28
2012 6 28
2012 6 28
2012 6 30
Start (s)
1023986017
1023967975
1023969511
1023973782
1023959953
1023976400
1023967320
1023968495
1023970073
1023976434
1023977055
1023978381
1023979488
1023982165
1023960238
1023967723
1023968395
1023969410
1023970870
1023990347
1023973866
1023977130
1023978758
1023979564
1024023854
1024022352
1024021815
1024022788
1024023468
1024023862
1024019658
1024067834
1024024047
1024412371
1024455120
1024482879
1024670337
1024670866
1024908203
1024908950
1024907448
1025088909
End (s)
1023986722
1023968101
1023970140
1023973950
1023960037
1023977432
1023968067
1023968730
1023970140
1023976769
1023978003
1023979077
1023979606
1023982216
1023960288
1023967891
1023968613
1023969997
1023970904
1023990397
1023974344
1023977835
1023978943
1023979631
1024024005
1024022444
1024021857
1024022922
1024023568
1024024374
1024019910
1024067868
1024024097
1024412489
1024455170
1024482913
1024670371
1024671177
1024908455
1024908983
1024908455
1025089152
83
Ele (°)
49.181
42.940
53.302
52.116
32.107
30.396
51.848
46.770
36.936
47.387
54.315
63.009
68.374
72.754
46.087
64.098
59.759
51.752
43.086
32.114
57.447
79.242
76.747
72.232
43.031
42.504
78.117
80.499
78.229
74.586
30.955
74.232
53.262
74.295
41.339
71.171
74.536
74.030
58.738
58.908
63.858
35.560
Azi (°)
243.819
142.300
127.031
76.232
71.146
297.491
226.290
218.409
210.037
263.021
261.835
256.715
248.872
185.795
101.611
101.750
96.003
91.005
89.276
54.459
245.277
202.232
151.960
138.972
133.061
92.516
233.779
191.121
165.043
151.772
61.404
198.412
274.266
199.480
72.362
133.004
215.117
195.912
254.243
244.539
230.418
286.398
maxS4
0.052
0.080
0.105
0.087
0.102
0.074
0.158
0.062
0.054
0.083
0.046
0.043
0.109
0.147
0.098
0.103
0.129
0.055
0.047
0.060
0.171
0.043
0.035
0.145
0.121
0.089
0.037
0.069
0.072
0.159
0.075
0.184
0.065
0.357
0.299
0.216
0.203
0.357
0.086
0.072
0.106
0.066
maxσφ (°)
38.040
54.406
86.419
25.003
80.447
71.440
74.291
29.909
18.924
44.260
39.912
20.183
38.728
26.538
39.161
39.337
51.651
86.334
23.061
20.170
63.781
35.971
17.808
97.843
72.673
17.384
17.094
30.434
22.588
43.399
27.308
4.168
26.457
5.138
4.956
1.841
2.474
8.070
16.898
29.932
30.561
26.606
PRN
1
1
1
3
3
3
4
6
6
11
11
11
11
11
11
11
11
13
14
14
14
18
18
18
18
18
19
19
19
19
19
19
19
19
20
20
20
20
22
22
22
22
UTC date
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
Start (s)
1025092635
1025093818
1025098349
1025083202
1025085074
1025086030
1025102654
1025083194
1025084931
1025086299
1025087021
1025087700
1025088414
1025088967
1025091753
1025093323
1025095463
1025104249
1025086962
1025088137
1025091728
1025083756
1025084461
1025084998
1025086114
1025086525
1025083630
1025085325
1025086274
1025087029
1025087608
1025088858
1025089807
1025090788
1025099063
1025101580
1025101941
1025102528
1025083622
1025085200
1025087130
1025088632
End (s)
1025092702
1025094011
1025098383
1025083689
1025085124
1025086668
1025103007
1025083656
1025085208
1025086609
1025087331
1025087918
1025088573
1025089177
1025091787
1025093532
1025097560
1025104291
1025087440
1025089127
1025091762
1025083891
1025084545
1025085242
1025086156
1025086752
1025083731
1025085384
1025086660
1025087339
1025087935
1025089446
1025090159
1025090931
1025099113
1025101630
1025102075
1025102562
1025083765
1025085284
1025088187
1025089068
84
Ele (°)
60.020
65.100
48.554
51.647
41.280
32.508
32.302
48.135
36.353
34.479
39.433
43.654
47.985
51.360
59.674
55.810
37.376
33.021
37.408
46.832
57.607
51.435
47.181
43.127
36.243
32.788
54.107
58.070
56.659
54.151
51.373
43.716
37.538
31.380
65.391
74.380
73.418
71.159
64.361
70.853
64.759
57.479
Azi (°)
270.855
253.242
193.487
216.911
205.307
200.203
304.669
196.058
189.792
283.555
281.868
279.610
276.135
272.164
239.279
216.478
194.954
239.560
146.258
137.863
101.743
82.010
78.719
76.698
74.873
74.497
277.158
255.379
239.558
230.716
224.642
214.809
210.043
206.728
253.901
201.207
190.360
178.626
176.419
150.049
103.570
94.075
maxS4
0.085
0.154
0.039
0.147
0.047
0.085
0.072
0.104
0.074
0.113
0.077
0.044
0.041
0.050
0.055
0.038
0.071
0.048
0.092
0.069
0.034
0.132
0.066
0.128
0.091
0.088
0.127
0.053
0.114
0.063
0.054
0.061
0.066
0.054
0.094
0.153
0.072
0.056
0.199
0.090
0.039
0.050
maxσφ (°)
39.491
57.427
22.822
93.761
22.304
42.942
18.783
59.559
23.911
33.309
22.204
23.564
16.928
23.027
19.149
18.129
31.033
15.587
36.630
22.361
21.434
24.553
52.579
47.110
21.480
33.685
32.634
17.492
35.944
28.315
34.879
18.564
23.593
28.235
18.247
18.477
17.048
25.273
35.013
24.497
27.897
21.805
PRN
22
23
23
23
31
31
31
31
31
32
32
32
32
32
10
13
16
16
16
16
20
21
23
25
25
25
29
30
31
31
20
1
1
1
1
1
1
2
4
5
5
7
UTC date
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 6 30
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 2
2012 7 8
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
Start (s)
1025091107
1025102243
1025102721
1025103393
1025098886
1025099566
1025101202
1025101781
1025102562
1025090629
1025093281
1025098635
1025102998
1025103787
1025284767
1025282207
1025281200
1025284893
1025285379
1025285765
1025272767
1025245502
1025284289
1025234291
1025235214
1025235668
1025245410
1025281024
1025272700
1025273170
1025790589
1025872414
1025873539
1025874428
1025874949
1025875654
1025876031
1025884238
1025883936
1025889038
1025890817
1025888736
End (s)
1025091149
1025102293
1025102906
1025103569
1025099172
1025099759
1025101311
1025102134
1025102595
1025090663
1025093465
1025099650
1025103116
1025104307
1025284800
1025282241
1025281293
1025285002
1025285413
1025285908
1025272876
1025245544
1025284893
1025234333
1025235391
1025235810
1025245461
1025281721
1025272733
1025273379
1025791101
1025873136
1025873883
1025874504
1025875309
1025875687
1025876165
1025885598
1025884607
1025889407
1025890918
1025889726
85
Ele (°)
41.386
51.185
55.409
60.576
43.862
45.455
45.849
44.376
42.344
31.085
51.897
75.022
46.501
39.098
59.168
76.892
30.369
38.395
37.737
36.753
73.113
69.615
43.493
73.530
70.265
67.832
35.603
34.293
46.310
46.180
74.358
55.292
48.790
43.206
38.187
34.064
30.803
30.305
31.814
31.771
40.244
64.899
Azi (°)
89.239
226.746
226.633
225.761
100.989
94.494
77.241
70.214
64.678
241.829
245.402
145.435
128.939
130.057
245.327
232.032
99.827
67.227
63.112
59.277
231.550
194.785
109.791
216.233
192.833
185.737
121.234
65.710
86.420
80.341
200.906
199.624
193.531
190.275
188.235
186.972
186.163
298.200
253.097
304.913
295.272
197.071
maxS4
0.042
0.042
0.049
0.044
0.064
0.057
0.044
0.054
0.044
0.056
0.042
0.172
0.048
0.088
0.035
0.154
0.193
0.091
0.100
0.063
0.237
0.149
0.058
0.258
0.315
0.130
0.211
0.163
0.044
0.058
0.261
0.043
0.080
0.055
0.091
0.060
0.127
0.088
0.065
0.062
0.143
0.204
maxσφ (°)
20.667
18.197
23.173
23.487
26.629
22.294
17.170
31.090
19.623
17.467
18.117
18.566
23.699
25.813
17.099
18.571
25.092
21.495
18.017
15.185
190.595
29.487
27.181
5.312
26.144
20.440
22.988
39.668
22.450
67.694
4.688
41.521
23.515
31.590
32.868
26.783
30.761
24.955
18.984
22.291
21.681
41.257
PRN
7
7
8
10
10
10
10
11
13
13
13
13
13
14
16
16
16
16
16
16
17
19
20
20
20
20
20
20
20
20
20
20
21
22
22
23
23
23
23
23
23
23
UTC date
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
2012 7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Start (s)
1025890121
1025891203
1025890985
1025881939
1025884414
1025885371
1025888702
1025872330
1025879363
1025880991
1025881729
1025887872
1025888652
1025872549
1025885262
1025887268
1025888073
1025888669
1025889399
1025890314
1025872255
1025862479
1025872330
1025875075
1025875628
1025877005
1025877819
1025879228
1025880093
1025880982
1025881695
1025882610
1025847743
1025860297
1025862193
1025875620
1025877819
1025879228
1025880504
1025881116
1025881662
1025885564
End (s)
1025890188
1025891740
1025891044
1025883089
1025885044
1025885405
1025889248
1025872935
1025880386
1025881133
1025882065
1025888258
1025888937
1025872675
1025885816
1025887318
1025888132
1025889021
1025889550
1025890523
1025872389
1025862563
1025872876
1025875251
1025876619
1025877466
1025878179
1025879791
1025880386
1025881184
1025882182
1025883332
1025847777
1025860339
1025862495
1025877575
1025878137
1025879279
1025880798
1025881200
1025882812
1025885715
86
Ele (°)
71.316
76.961
39.885
34.687
48.832
53.044
56.611
32.333
34.685
43.788
50.323
74.941
69.354
30.779
35.357
38.695
38.350
36.987
35.129
31.328
30.437
54.305
51.946
69.669
73.821
73.870
70.791
60.967
55.501
48.995
42.353
34.384
64.468
70.093
68.441
43.234
53.887
63.722
73.829
76.875
79.831
59.067
Azi (°)
187.265
154.218
224.229
292.586
284.013
278.066
229.774
192.198
240.010
242.521
243.895
128.255
122.208
60.307
90.561
74.371
66.675
60.015
54.900
48.346
297.846
230.726
262.392
245.668
225.875
194.394
177.339
160.575
157.127
154.978
153.995
153.728
202.318
156.683
113.126
225.923
226.550
224.426
213.136
203.174
163.258
109.069
maxS4
0.077
0.097
0.052
0.263
0.055
0.040
0.150
0.070
0.079
0.181
0.067
0.044
0.384
0.093
0.086
0.102
0.097
0.099
0.068
0.099
0.073
0.056
0.052
0.059
0.067
0.060
0.096
0.068
0.060
0.074
0.070
0.101
0.051
0.070
0.149
0.055
0.045
0.035
0.070
0.165
0.177
0.042
maxσφ (°)
16.886
25.765
17.817
92.736
21.093
17.360
48.010
60.010
19.020
24.728
56.406
25.025
78.490
23.401
32.204
38.135
65.348
21.884
34.157
24.382
23.102
22.668
41.611
17.762
34.904
21.573
52.360
26.651
37.316
31.706
54.061
39.511
18.284
25.492
30.945
37.269
21.842
20.905
17.696
43.065
97.936
20.546
PRN
23
23
23
26
30
30
30
31
31
31
31
31
31
31
31
31
32
32
32
32
32
32
32
32
32
32
1
11
11
13
14
16
20
25
31
31
32
3
16
18
21
22
UTC date
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 9
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 10
2012 7 12
2012 7 12
2012 7 12
2012 7 12
2012 7 12
Start (s)
1025887486
1025888182
1025888644
1025897438
1025882123
1025883407
1025884062
1025872633
1025873430
1025875133
1025876006
1025876535
1025876895
1025877533
1025877919
1025880118
1025872230
1025873740
1025875217
1025875964
1025876451
1025877793
1025878381
1025879262
1025879782
1025880521
1025954752
1025954265
1025954718
1025973927
1025955046
1025975194
1025959736
1025922914
1025959376
1025959955
1025959644
1026109617
1026109550
1026109550
1026109449
1026118244
End (s)
1025887763
1025888224
1025889424
1025897472
1025882577
1025883466
1025885505
1025873019
1025873547
1025875259
1025876308
1025876577
1025876988
1025877567
1025878129
1025880168
1025873019
1025873774
1025875259
1025876098
1025877021
1025878062
1025878716
1025879463
1025880051
1025880638
1025954785
1025954299
1025954785
1025974606
1025955104
1025975227
1025959778
1025922948
1025959627
1025960055
1025959820
1026109692
1026109592
1026109617
1026109567
1026118277
87
Ele (°)
43.679
39.248
32.970
53.671
31.636
33.935
33.896
36.992
40.265
45.718
46.317
45.993
45.373
43.817
42.169
31.525
78.603
78.667
70.249
64.527
59.255
50.248
45.567
39.484
35.388
30.542
62.841
58.214
56.668
74.587
53.197
36.442
59.321
73.335
39.605
41.820
79.182
32.636
48.364
39.409
74.698
68.133
Azi (°)
109.670
110.574
112.149
282.892
84.222
74.878
62.993
114.688
109.548
93.033
82.552
78.260
74.266
68.384
64.267
51.368
209.721
164.914
135.853
130.999
129.126
128.549
128.955
129.896
130.707
131.792
263.791
225.041
218.977
127.658
78.715
58.260
259.546
233.702
110.720
106.425
171.378
291.616
259.191
166.456
134.650
166.400
maxS4
0.057
0.056
0.201
0.037
0.153
0.090
0.092
0.073
0.054
0.050
0.063
0.033
0.046
0.064
0.094
0.052
0.121
0.137
0.052
0.035
0.044
0.048
0.039
0.055
0.060
0.073
0.054
0.038
0.033
0.052
0.039
0.188
0.036
0.177
0.061
0.066
0.136
0.143
0.082
0.103
0.252
0.111
maxσφ (°)
24.933
17.641
33.050
16.601
44.765
21.503
22.323
36.652
19.161
18.673
73.829
17.049
24.641
18.998
126.028
44.099
36.645
27.788
17.536
17.622
30.086
19.824
24.279
24.976
21.681
21.305
22.296
21.402
41.149
36.527
15.631
2.922
18.121
2.055
19.777
20.495
26.921
23.793
62.088
23.176
174.571
31.845
PRN
25
1
1
1
1
1
1
1
1
2
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
5
5
6
6
6
6
7
7
7
7
7
7
7
7
7
8
8
UTC date
2012 7 12
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 16
2012 7 16
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
Start (s)
1026096140
1026380831
1026385547
1026386386
1026386999
1026388039
1026389441
1026392201
1026392587
1026402112
1026369628
1026370669
1026372355
1026372842
1026374000
1026396313
1026400056
1026400350
1026434050
1026434755
1026363133
1026364400
1026406173
1026408859
1026409463
1026409874
1026411771
1026369636
1026370677
1026372531
1026373807
1026401768
1026404302
1026405124
1026407340
1026410227
1026410780
1026411821
1026412249
1026412845
1026406669
1026407147
End (s)
1026096174
1026381041
1026386109
1026386596
1026387729
1026389038
1026389936
1026392327
1026392856
1026402330
1026369662
1026370710
1026372397
1026373371
1026374336
1026396372
1026400115
1026400509
1026434201
1026435452
1026363309
1026364517
1026406434
1026408951
1026409496
1026409992
1026411846
1026369670
1026370727
1026373262
1026374218
1026403874
1026404478
1026406719
1026409883
1026410260
1026411083
1026411863
1026412366
1026412878
1026406752
1026408238
88
Ele (°)
72.972
32.846
64.027
65.751
65.802
62.434
55.330
36.534
33.049
30.407
43.175
49.749
57.393
58.768
58.073
37.182
36.282
35.042
41.371
42.762
35.431
30.600
32.595
44.075
45.265
45.752
43.359
56.622
61.620
63.194
58.810
38.197
50.998
62.962
75.829
71.210
66.582
59.886
56.364
52.136
30.563
37.969
Azi (°)
208.539
286.391
259.389
247.986
231.286
213.351
199.581
187.629
186.645
294.114
287.162
280.990
263.287
252.779
236.760
295.561
261.346
258.567
97.289
87.371
59.681
51.200
304.268
285.902
280.225
275.479
255.935
272.893
261.328
225.333
210.009
203.982
203.507
198.853
146.067
104.622
97.187
92.433
91.316
90.712
221.866
223.768
maxS4
0.199
0.118
0.103
0.042
0.061
0.064
0.057
0.062
0.080
0.095
0.083
0.079
0.107
0.130
0.091
0.085
0.142
0.079
0.061
0.072
0.052
0.118
0.149
0.147
0.078
0.046
0.166
0.071
0.095
0.160
0.081
0.253
0.046
0.226
0.257
0.050
0.054
0.205
0.066
0.040
0.141
0.075
maxσφ (°)
2.024
17.814
21.100
32.974
39.569
49.676
42.870
25.715
42.070
29.958
25.553
18.576
24.852
42.790
34.200
28.191
144.799
25.428
24.039
56.960
51.750
36.103
23.467
38.652
19.590
19.002
64.366
62.492
29.197
70.173
27.460
108.691
27.622
59.281
101.819
22.392
21.870
27.732
25.227
20.175
30.289
39.981
PRN
8
8
8
8
8
8
8
9
9
10
10
10
10
10
10
11
11
11
11
11
11
11
12
12
13
13
13
13
13
13
13
13
13
13
14
14
14
14
15
15
15
15
UTC date
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 16
2012 7 16
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
Start (s)
1026408615
1026410050
1026411133
1026413063
1026414238
1026415236
1026416386
1026429771
1026430291
1026400425
1026402020
1026402674
1026403396
1026406098
1026407172
1026379060
1026380537
1026384926
1026385421
1026386445
1026386940
1026388987
1026434445
1026435536
1026396187
1026396641
1026399930
1026400627
1026402062
1026403396
1026404159
1026404529
1026408859
1026409278
1026383483
1026385127
1026385396
1026386436
1026372271
1026373866
1026416898
1026417561
End (s)
1026409622
1026410277
1026412400
1026413952
1026414422
1026415597
1026416520
1026429821
1026430333
1026400652
1026402313
1026403152
1026403731
1026406761
1026410185
1026379094
1026380923
1026385236
1026386008
1026386503
1026388769
1026389785
1026434797
1026435569
1026396330
1026396674
1026400140
1026400710
1026403169
1026403740
1026404269
1026406669
1026408959
1026409580
1026383524
1026385161
1026386000
1026386621
1026373069
1026374310
1026416931
1026417594
89
Ele (°)
48.984
57.204
69.801
81.356
81.881
75.786
67.945
66.699
63.711
42.169
52.179
55.724
57.927
54.434
40.949
36.694
47.592
58.129
55.891
52.240
43.985
33.492
79.290
80.014
30.671
33.660
60.009
65.053
79.451
82.329
80.047
69.374
43.795
39.721
57.202
55.691
53.731
49.804
32.086
30.722
34.071
38.198
Azi (°)
226.060
226.869
223.816
190.706
144.919
111.883
103.661
204.459
196.813
289.492
279.518
272.017
263.852
223.737
206.682
282.927
276.544
224.587
216.631
208.826
199.425
192.692
225.186
183.430
238.727
239.660
244.625
243.888
222.672
176.041
144.907
122.416
121.403
122.391
108.937
86.385
80.066
72.484
66.756
55.161
298.799
296.175
maxS4
0.174
0.046
0.186
0.059
0.039
0.175
0.110
0.053
0.043
0.060
0.276
0.138
0.055
0.158
0.189
0.062
0.133
0.176
0.103
0.053
0.076
0.093
0.083
0.032
0.150
0.053
0.084
0.054
0.278
0.039
0.046
0.325
0.109
0.115
0.032
0.071
0.058
0.103
0.146
0.114
0.076
0.084
maxσφ (°)
123.287
18.561
34.552
41.490
27.719
43.600
31.406
23.065
22.081
21.566
79.707
29.520
25.718
59.422
59.892
23.357
38.418
50.898
31.438
21.871
55.155
50.307
15.425
18.794
56.631
22.574
27.016
39.072
149.982
25.430
18.506
61.682
17.841
34.699
19.656
26.376
18.602
20.908
65.465
36.526
23.872
20.858
PRN
15
16
16
16
16
16
16
16
16
16
16
16
17
17
18
18
18
18
18
19
19
19
19
20
20
20
20
20
20
20
20
20
20
21
21
21
21
21
22
22
22
22
UTC date
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
Start (s)
1026417930
1026363855
1026364937
1026370014
1026370811
1026371625
1026402296
1026403387
1026404873
1026405569
1026405930
1026407575
1026388283
1026389516
1026369712
1026370652
1026372313
1026373874
1026378691
1026373102
1026380822
1026381418
1026382089
1026386571
1026386873
1026387460
1026388014
1026389071
1026389692
1026394794
1026396364
1026399083
1026400073
1026364073
1026364878
1026370501
1026371969
1026373883
1026372557
1026372934
1026373933
1026384036
End (s)
1026417989
1026364341
1026364971
1026370157
1026370870
1026371759
1026403186
1026403891
1026405234
1026405620
1026406333
1026407625
1026389029
1026389558
1026369855
1026370727
1026373270
1026374218
1026378741
1026373211
1026381158
1026381561
1026382123
1026386629
1026387141
1026387670
1026388627
1026389306
1026389852
1026394828
1026396699
1026399259
1026400207
1026364442
1026365088
1026370534
1026373262
1026373975
1026372641
1026373303
1026374143
1026384070
90
Ele (°)
40.458
41.109
44.704
40.270
35.961
30.632
36.206
38.193
38.357
37.448
36.058
30.206
30.276
30.267
51.117
56.379
63.057
61.508
34.606
37.898
45.939
42.726
38.555
30.310
33.257
37.338
42.927
49.409
53.765
71.355
60.247
39.960
32.517
61.732
66.638
59.917
44.709
35.119
40.031
43.964
50.867
36.991
Azi (°)
294.272
298.494
292.723
240.050
234.986
230.369
88.337
80.094
66.602
61.700
57.159
46.921
303.677
295.596
158.038
150.580
122.100
102.602
74.748
294.599
216.536
213.439
210.300
261.253
261.847
262.501
263.003
262.784
261.928
179.428
160.004
153.834
153.756
204.520
199.501
103.676
101.146
102.438
192.828
191.989
189.571
89.389
maxS4
0.057
0.178
0.082
0.063
0.045
0.102
0.212
0.060
0.103
0.065
0.084
0.080
0.078
0.062
0.092
0.134
0.142
0.082
0.051
0.079
0.115
0.095
0.071
0.070
0.076
0.071
0.067
0.048
0.047
0.056
0.069
0.061
0.179
0.186
0.162
0.045
0.166
0.095
0.089
0.094
0.149
0.049
maxσφ (°)
17.785
47.119
19.084
52.070
73.898
21.177
80.916
31.347
31.460
22.804
32.545
33.835
36.078
34.505
68.841
67.417
47.987
20.204
23.574
31.079
30.971
23.159
21.950
27.452
29.494
20.909
33.949
34.012
29.591
25.994
19.361
41.064
91.651
95.189
45.417
21.844
44.330
27.954
22.902
25.367
54.270
22.178
PRN
23
23
23
23
23
23
23
23
23
26
26
26
28
28
28
28
29
29
30
30
30
30
30
31
31
32
32
32
32
32
32
1
1
1
1
2
2
2
2
2
2
2
UTC date
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 15
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
Start (s)
1026396322
1026396985
1026398294
1026398864
1026400543
1026402112
1026403404
1026404462
1026405183
1026416336
1026416906
1026418199
1026413533
1026415203
1026416915
1026417813
1026364182
1026364744
1026364089
1026399015
1026400249
1026400694
1026402313
1026388610
1026390062
1026384951
1026385513
1026386394
1026388173
1026389046
1026389751
1026476075
1026476972
1026478265
1026479020
1026437616
1026439428
1026441627
1026443037
1026443700
1026444749
1026487462
End (s)
1026396422
1026397094
1026398336
1026399376
1026400820
1026403161
1026403924
1026404848
1026406316
1026416503
1026417234
1026418291
1026414431
1026416596
1026417469
1026418350
1026364316
1026364811
1026364408
1026399049
1026400291
1026401197
1026403169
1026388685
1026390129
1026385178
1026386050
1026387662
1026388643
1026389080
1026389952
1026476528
1026477770
1026478449
1026479255
1026437666
1026439462
1026442567
1026443448
1026443876
1026444782
1026487655
91
Ele (°)
65.349
70.272
78.105
79.833
72.907
58.346
50.358
42.704
34.391
65.208
66.664
65.162
35.874
50.891
60.385
66.519
43.929
39.909
51.075
30.868
33.812
34.370
32.025
30.579
38.731
47.343
52.880
62.461
72.470
76.469
79.422
52.213
44.448
36.988
31.041
49.515
53.247
46.174
39.909
36.571
30.268
30.230
Azi (°)
223.447
219.101
195.986
164.090
119.506
108.869
108.696
109.764
111.681
259.172
246.408
222.526
186.357
183.032
176.714
167.223
118.913
119.763
255.595
86.235
75.744
69.678
54.175
121.752
112.184
244.895
245.237
243.756
234.585
223.224
197.795
196.219
190.807
187.759
186.148
121.943
101.133
73.418
66.483
64.173
61.330
300.758
maxS4
0.148
0.081
0.038
0.061
0.032
0.224
0.056
0.163
0.162
0.197
0.240
0.052
0.070
0.069
0.072
0.077
0.279
0.150
0.160
0.086
0.065
0.084
0.136
0.077
0.050
0.085
0.080
0.065
0.078
0.080
0.220
0.059
0.068
0.093
0.086
0.136
0.043
0.070
0.156
0.074
0.070
0.072
maxσφ (°)
37.936
35.717
25.629
43.859
30.455
91.374
34.583
25.364
46.222
29.423
22.650
15.760
28.997
29.895
23.320
21.828
37.935
69.659
63.226
19.895
23.729
48.381
75.284
19.838
31.906
22.328
31.028
36.918
30.686
17.454
44.480
41.824
40.441
26.883
30.604
45.517
40.418
39.855
143.650
22.484
16.226
16.708
PRN
2
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
7
10
10
10
11
11
11
12
12
12
13
13
13
13
13
14
14
16
16
16
16
16
17
18
20
20
UTC date
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
Start (s)
1026488041
1026436777
1026437507
1026438035
1026438975
1026480782
1026482662
1026484600
1026486614
1026487286
1026445521
1026446217
1026446620
1026447493
1026448273
1026450430
1026488536
1026485255
1026487026
1026488318
1026473398
1026474942
1026475907
1026436088
1026436449
1026437683
1026482595
1026483468
1026483954
1026487353
1026488511
1026473574
1026475395
1026448483
1026453795
1026487361
1026489979
1026491733
1026474564
1026453786
1026473381
1026474530
End (s)
1026488838
1026436810
1026437540
1026438388
1026439017
1026481907
1026483577
1026484634
1026486891
1026487546
1026445840
1026446259
1026447115
1026447812
1026448458
1026450472
1026488586
1026485926
1026487294
1026488377
1026473473
1026475009
1026476024
1026436181
1026436542
1026437733
1026483082
1026483509
1026484005
1026487420
1026488595
1026474782
1026475579
1026448516
1026453870
1026488905
1026490365
1026491767
1026474942
1026453820
1026473943
1026474740
92
Ele (°)
30.376
40.767
38.346
35.396
31.421
32.819
38.916
39.724
34.375
31.461
35.549
37.026
38.087
38.438
37.801
31.336
35.326
34.531
45.243
52.306
47.558
37.400
30.523
77.553
75.368
66.535
33.868
38.805
42.584
69.507
78.107
41.146
32.028
30.119
48.998
33.284
38.605
37.454
30.326
36.530
36.922
44.129
Azi (°)
293.614
70.637
64.505
59.589
55.027
303.975
289.237
276.029
257.220
252.431
92.661
87.809
82.057
74.707
68.173
52.188
203.935
292.641
287.400
279.302
202.496
194.628
191.451
163.093
155.079
142.644
239.716
241.163
242.173
241.927
228.260
64.306
60.524
307.455
263.390
94.816
76.505
61.714
303.277
167.746
262.439
263.031
maxS4
0.069
0.058
0.067
0.089
0.079
0.092
0.059
0.037
0.076
0.066
0.059
0.058
0.058
0.069
0.089
0.068
0.065
0.076
0.052
0.052
0.082
0.052
0.081
0.063
0.094
0.081
0.049
0.068
0.038
0.063
0.036
0.075
0.082
0.093
0.082
0.080
0.092
0.074
0.077
0.053
0.248
0.080
maxσφ (°)
42.545
17.619
22.998
26.014
20.847
40.125
26.619
15.875
16.333
20.629
33.957
15.269
46.223
88.077
82.399
18.405
18.606
20.026
24.207
26.469
70.273
16.732
25.771
15.901
23.608
26.138
30.441
18.685
16.532
15.429
21.213
88.676
34.272
20.078
25.430
36.178
19.788
16.713
51.656
25.765
147.692
31.895
PRN
20
20
20
20
20
20
20
20
21
21
21
21
21
21
22
23
23
23
23
23
23
23
25
25
25
25
25
25
25
29
29
29
29
29
29
30
30
30
30
30
30
30
UTC date
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
Start (s)
1026475647
1026476788
1026477820
1026478340
1026479926
1026481126
1026483191
1026485498
1026446855
1026447812
1026448189
1026451219
1026453753
1026454223
1026464293
1026477979
1026479683
1026480967
1026481831
1026483635
1026487143
1026489199
1026440234
1026441065
1026441753
1026443272
1026445882
1026446343
1026446805
1026442525
1026443255
1026444203
1026445487
1026446855
1026451210
1026446612
1026447929
1026451202
1026453803
1026485716
1026486186
1026487026
End (s)
1026475831
1026477384
1026477854
1026478533
1026480623
1026482754
1026483434
1026485960
1026447107
1026447845
1026448382
1026451403
1026453828
1026454315
1026464351
1026478298
1026480589
1026481328
1026482360
1026483761
1026487202
1026489233
1026440268
1026441442
1026441828
1026443540
1026445932
1026446393
1026446838
1026442575
1026443658
1026444463
1026446452
1026448357
1026451554
1026446679
1026448399
1026451412
1026454005
1026485817
1026486690
1026487420
93
Ele (°)
52.375
62.207
67.244
70.717
73.957
66.150
55.535
36.840
36.627
42.893
46.283
67.783
75.448
74.116
71.232
31.798
46.946
54.767
62.090
73.769
70.538
55.011
73.659
71.319
68.576
57.406
37.742
34.114
30.577
68.384
74.881
79.694
77.039
65.471
36.454
41.506
48.703
48.684
34.777
32.535
33.831
34.387
Azi (°)
262.273
257.361
250.929
242.485
195.438
166.916
157.147
153.732
209.576
209.671
209.504
197.740
142.841
130.537
135.782
223.769
226.214
226.372
224.954
213.102
115.743
108.566
223.067
197.463
187.738
172.639
166.891
166.668
166.560
233.889
224.849
202.237
136.836
120.033
120.565
295.170
282.569
245.031
224.360
81.481
75.633
68.571
maxS4
0.052
0.048
0.040
0.047
0.070
0.056
0.049
0.094
0.067
0.077
0.066
0.064
0.096
0.054
0.028
0.067
0.063
0.050
0.056
0.045
0.039
0.039
0.118
0.078
0.050
0.086
0.075
0.057
0.088
0.051
0.145
0.047
0.180
0.138
0.078
0.143
0.095
0.130
0.096
0.065
0.089
0.094
maxσφ (°)
28.330
22.110
24.855
27.699
29.540
32.947
21.647
22.547
32.912
16.883
81.821
157.675
51.883
18.117
32.574
23.128
34.557
37.025
26.991
18.213
24.266
19.724
24.772
26.544
22.750
59.261
40.700
18.795
18.286
23.253
41.670
20.859
72.177
179.965
47.857
87.354
125.173
59.054
20.863
18.630
28.336
24.215
PRN
30
31
31
31
31
31
31
32
32
32
32
32
32
32
32
2
3
3
3
5
5
5
5
6
6
6
15
15
16
16
16
18
19
21
21
21
21
21
22
29
29
29
UTC date
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 16
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
2012 7 17
Start (s)
1026488888
1026475638
1026476175
1026477610
1026479028
1026479792
1026481965
1026474530
1026475462
1026476301
1026477577
1026478609
1026480077
1026481202
1026483468
1026530275
1026542233
1026545229
1026545892
1026531962
1026534051
1026534345
1026535411
1026542225
1026545254
1026545841
1026545287
1026546513
1026535830
1026536174
1026537743
1026545212
1026545279
1026537618
1026537953
1026540219
1026542132
1026545246
1026545262
1026532272
1026532658
1026535956
End (s)
1026489484
1026475730
1026476813
1026478391
1026479448
1026481638
1026482351
1026474749
1026475663
1026476947
1026477979
1026478659
1026480824
1026482284
1026483686
1026530535
1026542510
1026545338
1026545925
1026531995
1026534085
1026534387
1026535461
1026542501
1026545338
1026546068
1026545590
1026546546
1026535872
1026536258
1026538046
1026545296
1026545363
1026537651
1026538087
1026540253
1026542174
1026545598
1026545430
1026532314
1026532692
1026536141
94
Ele (°)
31.160
35.760
39.904
45.189
46.333
43.582
37.462
72.996
78.118
79.220
73.745
67.889
54.337
44.581
31.021
33.645
45.853
58.608
58.839
35.972
38.310
38.015
35.724
58.739
62.952
60.558
31.968
30.406
37.497
39.557
47.004
63.107
36.974
68.859
71.076
74.721
64.459
40.966
43.358
75.957
73.417
47.731
Azi (°)
51.942
116.319
110.241
96.059
82.634
67.689
56.803
233.540
213.741
172.085
141.904
133.271
128.460
129.009
131.609
62.646
285.116
254.870
245.380
91.454
72.290
69.566
60.440
269.098
223.921
214.475
62.818
54.074
302.471
300.392
286.960
119.653
294.959
195.791
190.602
134.865
106.937
101.445
192.131
133.153
127.298
118.196
maxS4
0.103
0.100
0.059
0.050
0.059
0.082
0.057
0.047
0.042
0.037
0.041
0.055
0.059
0.057
0.070
0.061
0.061
0.184
0.026
0.055
0.044
0.048
0.076
0.061
0.176
0.039
0.108
0.060
0.065
0.058
0.050
0.090
0.311
0.045
0.101
0.041
0.041
0.089
0.167
0.046
0.034
0.065
maxσφ (°)
23.020
95.702
45.542
39.665
38.766
28.065
21.007
25.262
37.364
36.467
38.145
27.725
28.292
44.208
19.141
30.091
30.038
146.801
24.742
15.802
25.973
35.756
28.083
32.857
145.174
18.754
146.344
18.878
42.701
17.252
60.072
61.041
157.818
16.581
26.505
21.682
19.387
60.259
47.541
15.814
33.461
53.986
PRN
30
13
1
11
22
32
13
32
30
4
22
22
UTC date
2012 7 17
2012 7 19
2012 7 20
2012 7 20
2012 7 20
2012 7 22
2012 7 23
2012 7 23
2012 7 24
2012 7 31
2012 7 31
2012 7 31
Start (s)
1026536023
1026749521
1026814126
1026814160
1026813992
1026997969
1027086852
1027079022
1027174669
1027811297
1027754763
1027755560
End (s)
1026536208
1026750210
1026814420
1026814336
1026814378
1026998011
1027087540
1027079081
1027174736
1027811331
1027754805
1027755594
95
Ele (°)
51.557
72.940
51.122
59.331
41.542
49.531
43.404
79.410
31.741
37.147
66.123
69.652
Azi (°)
261.172
125.316
281.532
248.139
89.265
128.425
242.296
197.929
84.026
108.318
172.398
159.259
maxS4
0.108
0.058
0.079
0.054
0.103
0.308
0.051
0.168
0.063
0.038
0.184
0.230
maxσφ (°)
40.637
40.769
40.115
46.400
74.289
4.655
29.389
5.525
15.737
33.045
1.773
2.000