MDM Observatory 2.4m Telescope Observer's Report for 2001 Feb 12 Observer(s): Jacob Noel-Storr Institution(s): Columbia Instrument: CCDS Worked for 8.5 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 2 AM until . Beg: Seeing 1.6 arcsec, Clear, Winds Moderate Mid: Patchy Clouds, Winds High End: Patchy Clouds, Winds High, Humidity Rose Also Observing Summary: Start of night looked good. Winds steadily rose. Patchy, fast moving, clouds formed at 2 - 3 AM and the sky brightened considerably - rendering further observation pointless. Cloud cover continued to vary from almost total to clear. Humidity also rose and prevented reopening in clear patches. ------------------------------ Submitted on 2001 Feb 13 [6:17:51]