MDM Observatory 2.4m Telescope Observing Report for 2025 May 29 Observer(s): Ignacio Cevallos-Aleman Institution(s): Columbia University Instrument: CHaS Worked for 8 hours (all night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds from 02:00 until 4:30. Beg: Clear, Winds Calm Mid: Clear, Winds Calm End: Patchy Clouds, Winds Calm Observing Summary: Good conditions at the start and middle of the night, with scattered clouds towards the end. Continued observing galaxy targets during the better parts of the night, and switched to nebula observations as more clouds came in. ------------------------------ Submitted on 2025 May 30 [5:13:56]