TSSM JSDT
Chairs: J. Lunine, J-P. Lebreton
Lead Scientists: A. Coustenis,
D. Matson, C. Hansen
“…oh brave new world…”
L. Bruzzone, M-T. Capria, J. CastilloRogez, A. Coates, M. Dougherty,
A. Ingersoll, R. Jaumann, W. Kurth,
M-L.
M
L. Lara, C. McKay, R. Lopes,
R. Lorenz, C. P. McKay, I. MüllerWodarg, O. Prieto-Ballesteros,
F. Raulin, A. Simon-Miller, E. Sittler,
JJ. Soderblom,
Sode b o , F. So
Sohl,, C
C. Sot
Sotin,,
D. Stevenson, E. Stofan,
G. Tobie, T. Tokano, P. Tortora,
E. Turtle, H. Waite
Studyy managers:
g
Ch. Erd,, K. Reh
TSSM 1
TSSM Agenda
• Overview and
Orbiter Science
J Lunine
J.
• In situ Science
Coustenis
A.
• Mission Implementation
K. Reh
• In situ Elements
C. Erd
• Summary
06 Nov 2008
For planning and discussion
2
purposes only
TSSM in Astrobio Magazine
Pre-decisional – For Planning and
TSSM 3
Titan as an object is
of keen
interest for virtually all
areas of planetary
science
Titan as an object is
of keen
interest for all areas
of planetary science
Titan as an
object is of
keen
interest for
all areas of
planetary
science
Titan as an object is
of keen
interest for virtually all
areas of planetary
science
Science Goals
• Goal A: How does Titan function as a system;
to
o what
a e
extent
e a
are
e there
e e ssimilarities
a es a
and
d
differences with Earth and other solar system
bodies?
• Goal B: To what level of complexity has
prebiotic chemistry evolved in the Titan system?
?
• G
Goall C:
C What
Wh t could
ld b
be llearned
d ffrom E
Enceladus
l d
and Saturn's magnetosphere about the origin
and evolution of Titan?
9 July 2008; TSSM
Pre-decisional – For Planning and Discussion Purposes Only
9
TM Road from Goals to Instruments
TSSM 10
TSSM Planning Payload
NASA Orbiter
20 June 2008
This document has been reviewed for export control and it does NOT contain controlled technical data.
Not for Public Release
11
Titan‘s link to Saturn and Enceladus:
A rich magnetospheric mission
INMS upper atmospheric chemistry
Cassini INMS
Upper atmosphere complex polymers higher than
eight carbon atoms cannot be analyzed by Cassini
20 June 2008
?
New types of terrain still being uncovered
This document has been reviewed for export control and it does NOT contain controlled technical data.
Not for Public Release
13
Titan Upper Atmosphere/
Induced Magnetosphere
• Agnostosphere (400-950 km) not reached by
most measurements
– Important region for complex organic ion-molecule & aerosol
synthesis with relevance for the entire atmosphere and
astrobiology: Cassini-Huygens not equipped to study much of
Agnostosphere/ Thermosphere/Ionosphere chemistry
• Dedicated orbiter and improved
p
and new
instrumental payload & configuration
necessary to answer new questions raised
during Cassini-Huygens mission
–Advanced
Advanced INMS to measure the very heavy neutrals and
positive/ negative ions
–DC electric field (plasma speed) for studying
electrodynamic coupling
–Millimetre
Millimetre & Sub
Sub-mm
mm spectrometer for neutral wind
Titan‘s neutral atmosphere
Densest N2 atmosphere in solar system.
Titan seasonal cycle: exploration coverage
Titan’s surface: many questions from radar
Dunes
Fluvial erosion
Geology
Lakes district
Aug. 7,
2008
17
Titan’s surface
One site well understood from Huygens
Titan after Huygens
Landing
g site most resembles a desert
bajada on Earth
Titan
Earth (Desert bajada, Tucson)
Remote Sensing Diagnosis of Hydrocarbons
Titan’s interior includes an ocean
Enceladus: The little moon with
active geysers
This document has been reviewed for export control and it does NOT contain controlled technical data.
Not for Public Release
22
NASA Titan orbiter maps to
decadal objectives
23
Backup charts
TSSM 24
Backup charts
TSSM 25
Backup
charts
TSSM 26