MDM Observatory 2.4m Telescope Observer's Report for 2001 Dec 21

Observer(s): Johnson/Helfand
Institution(s): Columbia

Instrument: MDM8K

Worked for 4 hours (first half of the night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   High Humidity from 11pm until 6am.
   Beg: Seeing 1.5 arcsec, Clear, Winds Light & Variable
   Mid: Clear, Winds Light & Variable
   End: Clear, Winds Light & Variable

Observing Summary:

Closed the mirror covers at 11pm due to humidity, 
which rose to 95% by 3:30am, when we went to bed.
Got some observations of M31.

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Submitted on 2001 Dec 22 [13:47:54]