MDM Observatory 2.4m Telescope Observing Report for 2019 May 04

Observer(s): Weil & Fesen
Institution(s): Dartmouth College

Instrument: OSMOS/B

Worked for 8 hours (all night)
Conditions were Non-Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Cirrus, Winds Calm
   Mid: Seeing 1.2 arcsec, Cirrus, Winds Calm
   End: Seeing 1.5 arcsec, Cirrus, Winds Calm

Observing Summary:

A good of observing with very good seeing at the beginning of
the night. 

Ran into a similar problem as last night where long science 
exposures looked like biases near the end of the night. Restarted
prospero which didn't help but changing to a different did help. 

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Submitted on 2019 May 5 [4:42:38]