MDM Observatory 2.4m Telescope Observer's Report for 2006 Dec 13 Observer(s): Pereira/McGreer Institution(s): Columbia University Instrument: 8K Worked for 11 hours (most of the night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds from 7 until 12. Beg: Seeing 2 arcsec, Cirrus, Winds Calm Mid: Seeing 2.6 arcsec, Cirrus, Winds Light & Variable End: Seeing 1.4 arcsec, Clear, Winds Calm Observing Summary: slow start in the evening due to persistent cirrus. cleared up considerably around 1am but observing conditions remained extremely variable with diffuse clouds occasionally drifting by. ------------------------------ Submitted on 2006 Dec 14 [6:17:21]