MDM Observatory 1.3m Telescope Observing Report for 2010 Sep 30

Observer(s): Shappee
Institution(s): THE Ohio State University

Instrument: CCDS

Worked for 10 hours (all night)
Conditions were Mixed most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.6 arcsec, Cirrus, Winds Calm
   Mid: Seeing 1.8 arcsec, Patchy Clouds, Winds Calm
   End: Seeing 1.8 arcsec, Patchy Clouds, Winds Calm, Heavily Patchy

Observing Summary:

When pointing at objects at higher hour angles westward (1.5 airmass) the telescope was unable to hold its pointing on an object. 
The telescope would hold on an object for a time and then all of a sudden drift off the object by ~arcmin.  
Also, when moving the telescope in RA, (with the paddle) a movement in the telescope in one direction was greatly exaggerated while a movement in the other direction was lessened.  

Weather:
Beginning of the night was clear, with progressively more patchy clouds as the night went on.

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Submitted on 2010 Oct 1 [6:12:02]