MDM Observatory 2.4m Telescope Observer's Report for 2007 Jan 28

Observer(s): John Thorstensen
Institution(s): Dartmouth

Instrument: echelle CCD direct + 2 in FW

Worked for 8 hours (most of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 18:00 until 0:30.
   Beg: Seeing 1.5 arcsec, Cirrus, Winds Light & Variable
   Mid: Seeing 1. arcsec, Cirrus, Winds Light & Variable
   End: Seeing 0.7 arcsec, Clear, Winds Light & Variable

Observing Summary:

Started out looking really grim, with heavy high cloud everywhere
lit by the bright moon.  Managed to get some poor data through
some thinner spots, but it was almost useless so I mostly stayed
closed.  Then, after midnight, the clouds all went away (!) 
yielding photometric conditions with often deep sub-arcsec
seeing (again!  But not as steady as last night).  A very 
strange turn of affairs, but most welcome, since I was able to
catch up on many late-night parallax targets.  

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Submitted on 2007 Jan 29 [7:24:14]