MDM Observatory 2.4m Telescope Observing Report for 2015 Dec 18

Observer(s): Douglas, Nunez
Institution(s): Columbia

Instrument: ModSpec/Echelle

Worked for 11 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 1230 until .
   Beg: Clear, Winds Calm
   Mid: Cirrus, Winds Light & Variable
   End: Patchy Clouds, Winds Moderate

Observing Summary:

The night started out fine with good seeing, but the seeing 
dropped a bit after an hour or so. Clouds started moving 
overhead around 0930 UT/0230 local time, but they were thin 
enough to see brightish stars so we observed until 1230 UT/0530 
local when we couldn't find bright enough guide stars for our 
targets anymore.

The pointing drifted pretty significantly over the course of 
the night. Also, the weather monitor computer restarted itself
to install updates in the middle of the night. Neither caused 
any significant loss of observing time, but we submitted a 
trouble report as well. 

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Submitted on 2015 Dec 19 [5:49:23]