MDM Observatory 2.4m Telescope Observing Report for 2020 Jan 26 Observer(s): Liyuan Lu Institution(s): PMO Instrument: OSMOS Worked for 6 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: Clear, Winds Calm Observing Summary: start obverve sky flat at 18:00 and continue until 00:40 due to cloud. ------------------------------ Submitted on 2020 Jan 27 [6:53:27]