MDM Observatory 2.4m Telescope Observer's Report for 2007 Jun 11 Observer(s): McGreer Institution(s): Columbia Instrument: Echelle Worked for 8 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 2 arcsec, Clear, Winds Calm Mid: Seeing 1.5 arcsec, Clear, Winds Calm End: Seeing 1.2 arcsec, Clear, Winds Calm Observing Summary: Afternoon thunderstorms but sky cleared just at sunset. Seeing gradually improved throughout the night. Managed quite a few i and z band images of radio sources. At the beginning of the night, MIS would hang on requests to change the filter more than one position. If I stepped through the filters one-at-a-time, there was no problem. ------------------------------ Submitted on 2007 Jun 12 [5:07:44]