MDM Observatory 2.4m Telescope Observing Report for 2011 Feb 01

Observer(s): Milisavljevic and Parrent
Institution(s): Dartmouth

Instrument: CCDS

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:
   High Winds all night.
   Beg: Seeing 1.2 arcsec, Cirrus, Winds High
   Mid: Seeing 2 arcsec, Clear, Winds Moderate
   End: Seeing 2 arcsec, Clear, Winds Moderate

Observing Summary:

Started off with decent 1.2 arcsecond seeing which deteriorated
throughout the evening (+2.5 arcsec at worse). The temperature
continued to drop throughout the evening. 

Noticed 'flake-like' pattern on the flats fairly early in the
evening. Frost on the ccd window? Removal of these features from
science data was reasonably successful, but this should be
looked into.

Some useful data was obtained.

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Submitted on 2011 Feb 2 [6:35:58]