MDM Observatory 2.4m Telescope Observing Report for 2021 Oct 04 Observer(s): Meghna Sitaram, Nicole Melso, Ignacio Cevallos Aleman Institution(s): Columbia University Instrument: CHaS No Observing (see comments below) Bad weather most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds all night. Observing Summary: Threatening clouds and some heavy rain throughout the night. Collected bias images for calibration and measurements of scattered light and flexure in CHaS. ------------------------------ Submitted on 2021 Oct 5 [9:39:33]