MDM Observatory 2.4m Telescope Observing Report for 2023 Dec 18 Observer(s): Ignacio Cevallos-Aleman, Quinn Casey Institution(s): Columbia, Dartmouth Instrument: CHaS No Observing (see comments below) Bad weather most of the night. No equipment or software problems were encountered. Seeing and Weather: Observing Summary: Overcast throughout the night, domes at KPNO remained closed due to threatening clouds. Used part of the night to collect darks and stray light testing of CHaS with the dome closed. ------------------------------ Submitted on 2023 Dec 19 [2:31:06]