MDM Observatory 1.3m Telescope Observing Report for 2014 Jan 18

Observer(s): Simonian
Institution(s): OSU

Instrument: CCDS

Worked for 12 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds all night.
   Beg: Seeing 0.8 arcsec, Cirrus, Winds Calm
   Mid: Seeing 1 arcsec, Cirrus, Winds Calm
   End: Seeing 1 arcsec, Cirrus, Winds Calm

Observing Summary:

8 AGN targets were observed tonight. There was a cirrus layer 
which may degrade the data a bit. However, all objects were 
visible, and guided fairly well throughout the night. I think the 
worst effect of the cloud layer was to scatter moonlight.

Despite the cloud layer, seeing was still measured at ~1 . Does 
that make sense?

NS nodding was spotted, particularly for standard stars. There
were also very strange-looking PSFs during focusing that might 
be attributable to NS nodding. Particularly, images that look 
overfocused on one side, and underfocused on the other side. 

AGN were all observed by twilight.

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Submitted on 2014 Jan 19 [6:23:23]