MDM Observatory 2.4m Telescope Observing Report for 2010 Dec 23 Observer(s): Khan Institution(s): OSU Instrument: OSMOS Worked for 10 hours (most of the night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: High Humidity from 5:30p until 8:30p. Beg: Seeing 1 arcsec, Patchy Clouds, Winds Calm Mid: Seeing 2 arcsec, Cirrus, Winds Moderate End: Seeing 1.5 arcsec, Cirrus, Winds Light & Variable Observing Summary: Lost 3 hours at the beginning due to high humidity. The seeing was pretty good (1'') at the beginning, but got worse as the wind picked up, and varied between 1.5'' and 2'' for the rest of the night. Also, had to re-focus several times through the night: starting from 4455 and ending at 4478. ------------------------------ Submitted on 2010 Dec 24 [7:15:02]