MDM Observatory 2.4m Telescope Observing Report for 2011 Feb 15 Observer(s): Jackie Faherty Institution(s): American Museum of Natural History Instrument: Nellie Worked for 8 hours (all night) Conditions were Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 2 arcsec, Clear, Winds Calm Mid: Seeing 1.5 arcsec, Clear, Winds Calm End: Seeing 1.2 arcsec, Clear, Winds Calm Observing Summary: The seeing was variable and began at 2 . The guider lost tracking twice during the evening. I'm not sure why this happened. The two times were both around midnight. Otherwise the evening progressed nicely. There was minimal cloud coverage. The seeing remained variable. The wind was calm. ------------------------------ Submitted on 2011 Feb 16 [7:21:12]