ccd observations at zimmerwald werner gurtner astronomical institute university of bern ilrs...
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CCD Observations at CCD Observations at ZimmerwaldZimmerwald
Werner Gurtner
Astronomical Institute
University of Bern
ILRS Workshop
3-7 October 2005
Eastbourne
Station Zimmerwald
SLR/CCD
GPS: IGS
Gravimeter (ETH)
Schmidt/Cassegrain
GPS/GLONASS
Radar
Temp/Rel.H
LV95 Referenzpunkt
ZIMLAT: Optical axes
Camera
Instrument platform
Object: 79105A Camera: CCD42-40
Field of view: 14‘ x 13‘ Date: 23-Sep-2005 22:58:51 UT
7 geostationary Astra satellites(12x12‘)
CCD Control SystemCCD Control System
ZIMLAS(VMS Alpha)
Telescope PC(DOS)
Telescope
ZimControl(Linux PC)
Time Server(Windows PC)
Camera Server(Windows PC)
Planning Tool(Solaris)
Data Archive(Solaris)
Camera Server(Linux PC)
CAMAC PC(DOS)
CAMAC
tcp/ip
tcp/ip
tcp/ip
tcp/ip
tcp/ip
ftp
CCDSLR
CCD Interleaving with SLRCCD Interleaving with SLR
SLR schedule is generated and executed according to satellite priorities
CCD controller periodically requests observation time
SLR/Telescope controller grants or rejects requests depending on satellite priority and remaining pass time
If granted: CCD controller sends object positions or orbits to SLR/Telescope controller for execution
Operator (if present) can overrule automatic activities