MDM Observatory 1.3m Telescope Observing Report for 2014 Dec 14 Observer(s): Thorstensen Institution(s): Dartmouth Instrument: Mark III + Templeton CCD Worked for 12 hours (all night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Beg: Seeing 1+ arcsec, Cirrus, Winds Calm Mid: Seeing 1+ arcsec, Clear, Winds Calm End: Seeing 1+ arcsec, Cirrus, Winds Calm Observing Summary: Ran a simple spectroscopic program remotely from the 2.4m. Cirrusy at dinner, but remarkably clear most of the night according to KP all sky camera and my eyeballs. Saw a nice Geminid when I stepped out once. Warmer than last night, with essentially no wind, and extremely dry, so that dewars barely plume when filled. This is nothing new, but there is something screwy about the guiding at the 1.3m. Around 1 h west, the field of view slips by 10 or so arcsec, even though the guide star is not lost. The only explanation I can think of is that something in the guide optics slips at this position. It wouldn't take much. In slit spectroscopy, it causes the star to be lost. I expect Jules will have something to say, as he has more experience with the 1.3m than I have ... ------------------------------ Submitted on 2014 Dec 15 [7:11:21]