MDM Observatory 2.4m Telescope Observing Report for 2020 Mar 17 Observer(s): Melso/Schiminovich Institution(s): Columbia University Instrument: CHaS Worked for 9 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: High Humidity all night. Beg: Clear, Winds Moderate Mid: Clear, Winds Moderate End: Clear, Winds Moderate Observing Summary: Observed with CHaS for most of the night. Conditions were clear with high humidity. Used dry Nitrogen to keep the detector window clear. Closed with KPNO due to the humidity. ------------------------------ Submitted on 2020 Mar 18 [3:53:29]