MDM Observatory 2.4m Telescope Observing Report for 2019 Jan 04 Observer(s): Li Jiangtao Institution(s): University of Michigan Instrument: OSMOS/MDM4K Worked for 11 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: It gets cloudy at twilight in the morning. Observations went well over the night. ------------------------------ Submitted on 2019 Jan 5 [7:28:31]