MDM Observatory 1.3m Telescope Observing Report for 2015 Dec 25

Observer(s): Y. Jeon, Y.-K. Sheen, D. Park
Institution(s): Seoul National Univsersity

Instrument: Templeton

Worked for 4 hours (last half of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 18 until 2.
   Beg: Overcast, Winds Moderate
   Mid: Seeing >3 arcsec, Patchy Clouds, Winds Moderate
   End: Seeing >3 arcsec, Patchy Clouds, Winds Moderate

Observing Summary:

We started with high humidity (~85%) and thick clouds. 
At 2PM, condition became better to open dome. 

We could not find the best focus 
because the PSF shapes of a star changed very quickly with time  
and the shapes had double peaks 
even if we though that it was the best focus with a single peak. 
The best seeing was about 3.5 arcsec. 

I think that this is because the sky condition was variable. 

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Submitted on 2015 Dec 26 [7:17:05]