MDM Observatory 2.4m Telescope Observing Report for 2021 Sep 12

Observer(s): Melso/Schiminovich
Institution(s): Columbia University

Instrument: CHaS

Worked for 7 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Clear, Winds Calm
   Mid: Clear, Winds Calm
   End: Clear, Winds Calm

Observing Summary:

Started off the night fine with a few calibration images and took the telescope
out of focus for a throughput test. After this test we slewed to our next target and 
found that the focus was stuck (more detail in the trouble report). We were too 
far out of focus to observe, but made the best of the night/dark time by taking 
skyline measurements on an area of open sky.  

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Submitted on 2021 Sep 13 [5:08:47]