MDM Observatory 2.4m Telescope Observing Report for 2022 Jan 15 Observer(s): John Thorstensen Institution(s): Dartmouth Instrument: OSMOS + B4k Worked for 3.5 hours (part of the night) Conditions were Non-Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds from start until 3 AM. Beg: Overcast, Winds High Mid: Overcast, Winds Moderate End: Seeing 1.3 arcsec, Cirrus, Winds Light & Variable Observing Summary: Moonlit cloud of various optical depth until 3 AM, and pretty windy to start. Then it cleared up pretty quickly -- the clear edge was easily seen in the satellite animation on the National Weather Service site -- so I opened up for a productive few hours. Wind by that time had also died down to almost nothing, and the seeing was decent. It never cleared compleely, but it was fine for spectroscopy. Dome rotation wouldn't stop at shutdown; see trouble report. No impact on obsevations. ------------------------------ Submitted on 2022 Jan 16 [7:09:15]