MDM Observatory 2.4m Telescope Observing Report for 2014 Dec 11 Observer(s): Thorstensen & Alper Institution(s): Dartmouth Instrument: modspec + echelle CCD Worked for 9 hours (off and on through the night) Conditions were Mixed most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Clouds from 10 PM until end. Beg: Seeing 1 arcsec, Cirrus, Winds Light & Variable Mid: Seeing 1+ arcsec, Cirrus, Winds Moderate End: Seeing 1+ arcsec, Patchy Clouds, Winds Moderate Observing Summary: Mostly clear up until about 10 PM, but after that had varying amounts of high cloud, sometimes completely opaque, and a fair amount of wind. Stopped observing for a while around midnight but resumed when the clouds thinned out a bit. Pushed on until dawn and actually got some useful data on brighter objects. ------------------------------ Submitted on 2014 Dec 12 [6:58:51]