MDM Observatory 1.3m Telescope Observing Report for 2025 Feb 04 Observer(s): David Schiminovich, Nathan Bush, Meghna Sitaram Institution(s): Columbia, JPL Instrument: MDM test camera (CIS 120) Worked for 10 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Cirrus, Winds Moderate Mid: Clear, Winds Moderate End: Clear, Winds Moderate Observing Summary: Second night of observations with CMOS test camera (see previous night). First test with pumped dewar and cryocooler. Worked well and reached dark currents below read noise in ~1-minute exposures. Observations include stars+exo transit, nebulae and star cluster calibration targets in UBVRI and H-alpha filters. ------------------------------ Submitted on 2025 Feb 5 [13:15:41]