MDM Observatory 1.3m Telescope Observing Report for 2015 Apr 13 Observer(s): Ryan Chornock Institution(s): Ohio University Instrument: R4K Worked for 8+ hours (all night) Conditions were Non-Photometric most of the night. No equipment or software problems were encountered. Seeing and Weather: Clouds from 10:30 until 11PM. Beg: Seeing 1.3 arcsec, Clear, Winds Calm Mid: Seeing 1.5 arcsec, Clear, Winds Calm End: Seeing 1.6 arcsec, Clear, Winds Calm Observing Summary: Mostly a clear night observing late-time supernovae and other transients. Also got some images of tonight's GRB. One single band of clouds did come through and was thick enough that I lost half an hour. After the clouds passed, conditions were pretty good. 1.3-1.5 seeing for most of the night, a little worse towards morning. ------------------------------ Submitted on 2015 Apr 14 [6:11:53]