MDM Observatory 2.4m Telescope Observing Report for 2025 May 26 Observer(s): David Schiminovich, Ignacio Cevallos Aleman Institution(s): Columbia University Instrument: CHaS Worked for 8 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: Patchy Clouds, Winds Calm Observing Summary: Started the night with some stray light tests in CHaS, followed with observations of galaxy targets in H-alpha, NII and SII filters. Good weather throughout the night ------------------------------ Submitted on 2025 May 27 [5:06:51]