MDM Observatory 2.4m Telescope Observing Report for 2019 Jun 22

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

Instrument: OSMOS/B

Worked for 6 hours (most of the night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.3 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.3 arcsec, Clear, Winds Calm
   End: Clear, Winds Calm

Observing Summary:

Things were going swell for a while aside from the already-
known rotator issue. At around 1:15 we slewed the telescope
to near zenith to rotate the instrument. Once there, one of the
screws of the RA drive preload snapped in half and flew out of
its hole along with the washers. We recovered the two smaller
washers, but have yet to find the larger, conical one.
Decided to close up rather than risk further damage.
Couldn't hear anything in the small movement to the telescope
stow position...

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Submitted on 2019 Jun 23 [1:40:37]