MDM Observatory 2.4m Telescope Observing Report for 2023 Sep 08

Observer(s): Thorstensen
Institution(s): Dartmouth

Instrument: OSMOS

Worked for 7  hours (most of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds all night.
   Beg: Seeing 1+ arcsec, Patchy Clouds, Winds Moderate
   Mid: Overcast, Winds Moderate
   End: Seeing 1+ arcsec, Patchy Clouds, Winds Light & Variable

Observing Summary:

Cloudy intervals throughout the night - start was clear,
then socked in for a while, then mostly clear with some cloudy
intervals -- was closed for a couple of hours during first half.  

No real problems, but W mirror cover did not open in evening. 
Solved this by slewing over to the west, and the cover opened
rather violently, as they do, aided by gravity

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Submitted on 2023 Sep 9 [6:10:06]