MDM Observatory 2.4m Telescope Observing Report for 2026 Jan 20 Observer(s): Ignacio Cevallos-Aleman 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: Great weather all night, continued observations with new filter on CHaS ------------------------------ Submitted on 2026 Jan 21 [7:41:54]