MDM Observatory 2.4m Telescope Observing Report for 2022 May 18

Observer(s): Terndrup and crew
Institution(s): Ohio State

Instrument: OSMOS/B

Worked for 3 hours (first half of the night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 2.5 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.7 arcsec, Clear, Winds Light & Variable
   End: Clear, Winds Calm

Observing Summary:

Night started off with very poor but slowly improving seeing.  At
23:00, KPNO closed because of dust. Here there was clearly dust
in flashlight beams and dust was accumulating on surfaces and on
our car, so we closed.  At 01:35 KPNO reopened, but there was 
still dust in flashlight beams near the 2.4m.  This situation
did not improve, so we closed for good at 02:00.

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Submitted on 2022 May 19 [2:04:14]