MDM Observatory 2.4m Telescope Observing Report for 2021 May 17

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

Instrument: CHaS

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: Cirrus, Winds Calm
   Mid: Clear, Winds Calm
   End: Clear, Winds Calm

Observing Summary:

We adjusted the CHaS filter wheel and relay system to improve some obscuration 
we have been seeing and then got on-sky early in the night. We observed NGC 4631, 
NGC 5474 and then various nebulae targets for calibration. We are imaging with the
telescope in open loop due to issues with the guidance software. Otherwise
the the telescope/CHaS performed well!

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Submitted on 2021 May 18 [14:28:00]