MDM Observatory 2.4m Telescope Observing Report for 2010 Mar 22 Observer(s): John Thorstensen Institution(s): Dartmouth Instrument: Modspec + echelle CCD Worked for 3 hours (first half of the night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds all night. Beg: Seeing 1+ arcsec, Patchy Clouds, Winds Moderate Mid: Overcast, Winds Light & Variable End: Overcast, Winds Light & Variable Observing Summary: Partly cloudy at sunset, but had some quite usable intervals early -- never anywhere close to photometric. Started testing the Andor camera, using Andor's Solis software and hand guiding. It worked well. Heavier clouds rolled in around 10:30 PM, so I closed; conditions then deteriorated rapidly and there was some light rain around midnight. Dome is acting up again, see trouble report for details. ------------------------------ Submitted on 2010 Mar 23 [1:26:46]