MDM Observatory 2.4m Telescope Observing Report for 2010 Sep 19 Observer(s): Julie Skinner Institution(s): Dartmouth College Instrument: OSMOS Worked for 8 hours (most 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: Overcast, Winds Light & Variable Mid: Seeing 1+ arcsec, Patchy Clouds, Winds Light & Variable End: Seeing 1+ arcsec, Patchy Clouds, Winds Calm Observing Summary: Evening started off with threatening clouds and a thunderstorm to our west. Initially, it was moving this way, so we did a lightning shutdown. Eventually, it stalled out and dissipated and we were able to open. We were back up and rolling by 22:00. At initial opening, we also had a problem with the OSMOS dark hatch. The last half of the evening had patchy clouds and was generally just ok. ------------------------------ Submitted on 2010 Sep 20 [5:35:43]