MDM Observatory 2.4m Telescope Observing Report for 2016 May 12 Observer(s): Jianfeng Wu Institution(s): University of Michigan Instrument: OSMOS/B Worked for 10 hours (all night) Conditions were Non-Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 1.4 arcsec, Clear, Winds Calm Mid: Seeing 1.1 arcsec, Clear, Winds Calm End: Seeing 1.5 arcsec, Clear, Winds Calm Observing Summary: The weather had been cooperating. Seeing was excellent. Doing spectroscopy all night. Observed six targets. The only problem encountered is the rotator angle number on the TCS monitoring display. Did not affect observing. See Trouble Report. ------------------------------ Submitted on 2016 May 13 [6:20:59]