MDM Observatory 2.4m Telescope Observing Report for 2020 Jan 25 Observer(s): Liyuan Lu Institution(s): UMICH Instrument: OSMOS Worked for 15 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 2 arcsec, Clear, Winds Calm Mid: Seeing 2 arcsec, Clear, Winds Calm End: Seeing 2 arcsec, Clear, Winds Calm Observing Summary: It's sunny in night. We observed the flat arc before the night., then ten times IC443N observation for 30min. The humidity becamestoo high(~80) after 5:00 am 1/16. so we closed the dome at 5:30 am. ------------------------------ Submitted on 2020 Jan 26 [7:38:49]