MDM Observatory 2.4m Telescope Observing Report for 2011 Jan 01 Observer(s): Halpern, Liu Institution(s): Columbia Instrument: OSMOS Worked for 13 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 1.5 arcsec, Clear, Winds Light & Variable Mid: Seeing 1.5 arcsec, Clear, Winds Light & Variable End: Seeing 1.5 arcsec, Clear, Winds Light & Variable Observing Summary: Some problems, but some improvements, as described in the trouble report. Observed SDSS QSOs and gamma-ray blazars. ------------------------------ Submitted on 2011 Jan 2 [6:59:30] NOTE: This report replaces the previous 2.4m telescope observing report for 2011 Jan 01