MDM Observatory 1.3m Telescope Observing Report for 2010 Sep 25

Observer(s): Chien-Ting Chen
Institution(s): Dartmouth

Instrument: CCDS

Worked for 12 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 4.00 arcsec, Clear, Winds Calm
   Mid: Seeing 1.48 arcsec, Cirrus, Winds Calm
   End: Seeing 2.03 arcsec, Clear, Winds Calm

Observing Summary:

While observing Mrk335
, RA=00 06 19.5, DEC=20 12 10, 
the guider box would drift away for some unknown reason. Perhaps it's because I started my exposure right after I moved the guider box? 

For the rest of night, I always made sure that the guider box was standing still before the exposure, and the box never drifted again. 

------------------------------

Submitted on 2010 Sep 26 [5:31:26]