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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
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Station Zimmerwald
SLR/CCD
GPS: IGS
Gravimeter (ETH)
Schmidt/Cassegrain
GPS/GLONASS
Radar
Temp/Rel.H
LV95 Referenzpunkt
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ZIMLAT: Optical axes
Camera
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Instrument platform
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Object: 79105A Camera: CCD42-40
Field of view: 14‘ x 13‘ Date: 23-Sep-2005 22:58:51 UT
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7 geostationary Astra satellites(12x12‘)
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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
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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
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