MDM Observatory 2.4m Telescope Observing Report for 2026 Jan 19 Observer(s): Ignacio Cevallos-Aleman Institution(s): Columbia University Instrument: CHaS Worked for 10 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: Good start to the observing run with CHaS, reinstalled our new filter and took data on two galaxies. Good weather most of the night. ------------------------------ Submitted on 2026 Jan 20 [6:38:48]