MDM Observatory 2.4m Telescope Observing Report for 2019 Jun 21

Observer(s): Rupert, Jayasinghe
Institution(s): MDM, OSU

Instrument: OSMOS/B

Worked for 8.5 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.26 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.28 arcsec, Clear, Winds Calm
   End: Seeing 1.35 arcsec, Clear, Winds Calm

Observing Summary:

Detected a bug somewhere in the optical path taking twilight
flats. Saw it in a 2k image, but not a 4x1k, so I was able
to get through the night. Had issues with the instrument
rotator again. See the detail in the trouble report.
Again, didn't lose much time over this, but something
is definitely going on.

Other than that, 'twas a fine start to this run.

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Submitted on 2019 Jun 22 [4:06:12]