SRT - The Sardinia Radio Telescope
Project status and ACS usage
G. Maccaferri
C. Migoni
M. Murgia
A. Orlati
F. Palagi
S. Poppi
F. Schilliro'
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
New 64m Gregorian telescope
operating from 0.3 to
100GHz
Three available foci: primary,
Gregorian and bwg (beamwave guide) with receivers
automatic configuration
Active surface
Metrology sensors for temp.
deformation, secondary
mirror migrations, wind
Pointing precision: 1 arcsec
Expected gain @ 30GHz:
0.635K/Jy
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
1116 active surface actuators
7 axis subreflector
3 axis primary focus positioner
Multireceivers gregorian rotating drum
Rotating mirror for bwg 4-foci selection
18 cryogenic receivers, with one of multi-beams type
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
The foundation is finished and is in progress the azimuth track assembly
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
On february/march will start the antenna erection
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
The 1116 actuators are ready and under test
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
The receivers are in progress
Multi-beam at 22GHz
Gregorian focus
Mono-feed at 6.7GHz
BWG
Dual frequency
(300 MHZ / 1.4 GHz)
Primary focus
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
Why ACS for SRT?
Strong and reliable software framework to monitor and control all
the antenna devices
User’s contribute area for software exchanging
Remotely controllable
Notification channels
Events and alarm logging system
Load balancing and failure tolerance features
Platform and license free system
Emerging standard in radiotelescope control
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
We will use ACS to control:
the telescope pointing
the active-surface system
the three-foci configuration
the receivers
the antenna calibration
the single dish observations
the sources and observations catalog
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
ACS environment
Versions 5.0.5 and 6.0.1
Scientific Linux release
Update 4.1 and 4.4
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
What we are doing with ACS:
Server/Component side
MEDACU: component to control the Medicina Antenna Control
Unit (ACU) which is similar to the future SRT ACU
LAN, USD: a set of components to control the active surface
IRALibrary: a bunch of tools common to all our modules
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
What we are doing with ACS:
Server/Component side: MEDACU
Error system
Logging system
Notification channel
DEVIO
Thread
Callback
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
What we are doing with ACS:
Server/Component side: LAN & USD
Error system
Logging system
DEVIO
Callback
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
What we are doing with ACS:
Client side
A series of textual and graphical client (QT) for our components
and
a graphical library (IRAGraphics, QT) that we use to monitor
physical properties, to make maps, Fourier analisys, ecc
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007
SRT - The Sardinia Radio Telescope
Project status and ACS usage
Carlo Migoni - 3rd ACS Workshop, ESO Garching - 15/01/2007