MDM Observatory 2.4m Telescope Observing Report for 2023 Oct 21 Observer(s): M. Sitaram and M. Messere Institution(s): Columbia University Instrument: CHaS Worked for 11 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Clear, Winds Calm Mid: Clear, Winds Calm End: Clear, Winds Calm Observing Summary: Nice weather all night. We continued with our O III channel commissioning and observed several galaxy and nebula targets. Telescope and instrument performed well, apart from the dome losing tracking with the telescope once again during the night. Also, Prospero crashed at one point during a set of observations but we were able to bring it back up without any issues. ------------------------------ Submitted on 2023 Oct 22 [6:01:02]