MDM Observatory 2.4m Telescope Observing Report for 2017 May 27 Observer(s): Halpern. Cho, Collver Institution(s): Columbia Instrument: OSMOS Worked for 9 hours (all night) Conditions were Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 1 arcsec, Clear, Winds Light & Variable Mid: Seeing 1.5 arcsec, Clear, Winds Light & Variable End: Seeing 1 arcsec, Clear, Winds Light & Variable Observing Summary: A night of spectroscopy. The only problem was when the telescope got lost after a reset of RA and Dec encoders and hit the hard limit. See separate trouble report for cause and solution. ------------------------------ Submitted on 2017 May 28 [5:03:48]