MDM Observatory 2.4m Telescope Observing Report for 2017 Dec 15 Observer(s): Nunez Institution(s): Columbia Instrument: OSMOS/R Worked for 12 hours (all night) Conditions were Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Clear, Winds Calm Mid: Clear, Winds Calm End: Cirrus, Winds Calm Observing Summary: The sky was completely clear during the first half of the night. Some cirrus clouds appeared near the horizon during the second half. Humidity remained below 30% for almost the whole night. Calm winds all night. Dome did not go home when prompted on the DFM Control System at the end of the night. I had to do it manually with the paddle. ------------------------------ Submitted on 2017 Dec 16 [7:13:03]