MDM Observatory 2.4m Telescope Observing Report for 2025 May 30 Observer(s): Ignacio Cevallos-Aleman Institution(s): Columbia University Instrument: CHaS Worked for 6 hours (all night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Clear, Winds Light & Variable Mid: Patchy Clouds, Winds Light & Variable End: Cirrus, Winds Calm Observing Summary: Significant dust at the start of the night, cleared up around 10pm. Proceeded to observe a galaxy target in the CHaS NII while the sky was clear, switched to nebula observations towards the end of the night when more scattered clouds were present. ------------------------------ Submitted on 2025 May 31 [5:45:35]