MDM Observatory 2.4m Telescope Observer's Report for 2007 Jul 16 Observer(s): John Thorstensen Institution(s): Dartmouth Instrument: modspec + echelle CCD Worked for 3 hours (last half of the night) Conditions were Overcast most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds all night. Beg: Overcast, Winds Moderate Mid: Seeing 1.5 arcsec, Patchy Clouds, Winds Light & Variable End: Seeing 1.5 arcsec, Patchy Clouds, Winds Calm Observing Summary: Monsoon weather - lightning shutdown in the afternoon, some rain around at dinner, but activity died down after sunset, with lots of heavy high cloud around all night. Holes began appearing around 10 PM, but these were too short-lived and small to do anything with until a little after midnight. Some reasonably clear intervals after that, but never photometric; heavy cloud rolled in at twilight, so I closed. Minor troubles described in separate report. ------------------------------ Submitted on 2007 Jul 17 [4:26:48]