MDM Observatory 2.4m Telescope Observing Report for 2020 Dec 12

Observer(s): Rupert
Institution(s): MDM

Instrument: OSMOS/B

Worked for 6 hours (off and on through the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   High Humidity from 9 until 2.
   Beg: Seeing 2.2 arcsec, Patchy Clouds, Winds Light & Variable
   Mid: Clear, Winds Light & Variable, High Humidity
   End: Seeing 2.1 arcsec, Clear, Winds Light & Variable

Observing Summary:

Clouds interrupted observations for a spell in the early
goings. A spike in humidity quickly followed and stuck
around for a few hours. Heard a ringing coming from the RA
drive. Didn't notice any performance issues, but it's something
new.

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Submitted on 2020 Dec 13 [7:19:53]