MDM Observatory 2.4m Telescope Observer's Report for 2001 Dec 23

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

Instrument: MDM8K

Worked for 8 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 all night.
   Beg: Seeing 1.3 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.7 arcsec, Clear, Winds Light & Variable
   End: Clear, Winds Light & Variable

Observing Summary:

Observed M31.  Very clear but closed at 230 due to high humidity.
Last night's dome tracking problem did not appear.  Dark hatch stuck 
open.

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Submitted on 2001 Dec 24 [3:19:55]