MDM Observatory 2.4m Telescope Observing Report for 2021 Sep 10 Observer(s): Melso/Schiminovich Institution(s): Columbia University Instrument: CHaS Worked for 7 hours (all night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Clear, Winds Calm Mid: Patchy Clouds, Winds Calm End: Patchy Clouds, Winds Calm Observing Summary: A mix of clouds and higher humidity throughout the night. Spent most of the time on-sky when possible, but switched to calibration images in the early morning. CHaS and the telescope performed well. No issues and no clangs to report. ------------------------------ Submitted on 2021 Sep 11 [4:23:04]