MDM Observatory 2.4m Telescope Observing Report for 2011 Dec 26 Observer(s): Hsu Institution(s): Michigan Instrument: OSMOS Worked for 12 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 1.5 arcsec, Clear, Winds Moderate Mid: Clear, Winds Light & Variable End: Clear, Winds Calm Observing Summary: Observed optical spectra of YSOs in Orion with OSMOS. There were a few short power outages (a few seconds). No other problem was encountered. ------------------------------ Submitted on 2011 Dec 27 [7:12:11]