MDM Observatory 2.4m Telescope Observing Report for 2017 Sep 11 Observer(s): Li Jiangtao Institution(s): University of Michigan Instrument: MDM Blue 4K Worked for 9 hours (all night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds from 6pm until 10pm. Beg: Cirrus, Winds Calm Mid: Clear, Winds Calm End: Clear, Winds Calm Observing Summary: TIFKAM still does not work. Change to MDM 4K to take some narrow band images. Focus button on the paddle in the control room does not seem to work well, use the paddle in the dome to refocus. Cloudy at the beginning of the night, clear in the later half of the night. ------------------------------ Submitted on 2017 Sep 12 [6:26:16]