MDM Observatory 1.3m Telescope Observing Report for 2010 Feb 17 Observer(s): Crotts and 6 graduate students Institution(s): Columbia University Instrument: Echelle direct Worked for 12 hours (all night) Conditions were Non-Photometric most of the night. Problems were encountered, see the separate trouble report for details. Seeing and Weather: Beg: Seeing 1.5 arcsec, Clear, Winds Calm Mid: Seeing 1.5 arcsec, Cirrus, Winds Calm End: Seeing 1.5 arcsec, Clear, Winds Calm Observing Summary: Good observing. CCD lost communications (and the exposure's image) at the beginning of the night. Sorry, but we broke the LN2 fill rubber tube. ------------------------------ Submitted on 2010 Feb 18 [6:58:57]