MDM Observatory 2.4m Telescope Observing Report for 2009 Dec 15 Observer(s): Jia Liu, Jules Halpern Institution(s): Columbia University Instrument: CCDS Worked for 11 hours (most of the night) Conditions were Mixed most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 2 arcsec, Cirrus, Winds Light & Variable Mid: Seeing 2.5 arcsec, Patchy Clouds, Winds Light & Variable End: Seeing 2 arcsec, Patchy Clouds, Winds Light & Variable Observing Summary: Partly cloudy, poor seeing. ------------------------------ Submitted on 2009 Dec 16 [4:54:16]