MDM Observatory 2.4m Telescope Observer's Report for 2007 Apr 21 Observer(s): Mangala Sharma & Tom Statler Institution(s): Ohio Univ Instrument: 8k CCD Camera Worked for 6 hours (last half of the night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 0.9 arcsec, Clear, Winds Light & Variable Mid: Seeing 1.0 arcsec, Clear, Winds Calm End: Seeing 1.0 arcsec, Clear, Winds Calm, Very light cirrus Observing Summary: Much improved weather tonight, compared to last night. Temperature was 6 +/- 1 Celsius throughout, mild winds, reasonably good transparency, and a few passing clouds. Night started out photometric; that did not last more than a couple of hours. Encountered problems with 8k Dewar warming up, and persistent electronic problems (grounding noise). Described in trouble report. ------------------------------ Submitted on 2007 Apr 22 [5:55:31]