MDM Observatory 1.3m Telescope Observing Report for 2011 Jan 20

Observer(s): Jackie Faherty and Sebastien Lepine
Institution(s): American Museum of Natural History

Instrument: MKIII

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

Seeing and Weather:
   Beg: Seeing 1 arcsec, Clear, Winds Calm
   Mid: Seeing 1 arcsec, Clear, Winds Calm
   End: Seeing 1 arcsec, Clear, Winds Calm

Observing Summary:

We had good seeing and no wind or cloud conditions at the start of the night.
We filled the dewar at ~5:30pm.  At ~4:00am the detector counts started to saturate.  
I was troubleshooting possible explanations before I called Sebastien and he verified 
that the detector had gotten too hot.  By the time we read the temperature it was at 0 
degrees Celsius.  We immediately filled the dewar.   

------------------------------

Submitted on 2011 Jan 21 [7:33:26]