MDM Observatory 1.3m Telescope Observer's Report for 2007 May 18

Observer(s): Atlee
Institution(s): OSU

Instrument: CCDS

Worked for 8 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.1 arcsec, Clear, Winds Moderate
   Mid: Seeing 1.5 arcsec, Clear, Winds Light & Variable
   End: Seeing 1.5 arcsec, Clear, Winds Light & Variable

Observing Summary:

Got all seven targets with three exposures each and two standard
stars with two exposures each.  Last exposure of final target
pushed into twilight quite hard.

Had difficulty getting the telescope's pointing set correctly at
the beginning of the night, costing approximately 40 min of 
observing time.  Eventually had to use 4th mag bright star to set
pointing and move forward.

Reset CCDS Acquisition Camera temperature, according to camera
manual, to -10 C.  The higher temperature introduces more dark
counts and makes measurements of seeing more difficult in long
exposures.

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Submitted on 2007 May 19 [5:02:16]