MDM Observatory 2.4m Telescope Observing Report for 2013 Sep 12 Observer(s): John Thorstensen Institution(s): Dartmouth Instrument: Modspec + Templeton Worked for 11 hours (all night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 1.5 arcsec, Clear, Winds Moderate Mid: Seeing 1.5 arcsec, Patchy Clouds, Winds Moderate End: Seeing 1.5 arcsec, Clear, Winds Light & Variable Observing Summary: Mostly a very good night, and actually photometric most of the time; however, some heavy clouds rolled through around 9 PM. These proved mercifully ephemeral. Seeing was a bit mediocre but adequate. Everything worked well. There were a couple of instances of non-completing sets, but those do happen from time to time. ------------------------------ Submitted on 2013 Sep 13 [6:13:59]