MDM Observatory 2.4m Telescope Observer's Report for 2007 Jul 15

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

Instrument: modspec + echelle CCD

Worked for 7 hours (most of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 8 PM  until midn.
   Beg: Seeing 2 arcsec, Patchy Clouds, Winds Moderate
   Mid: Seeing 1.5 arcsec, Patchy Clouds, Winds Light & Variable
   End: Seeing 1 arcsec, Clear, Winds Calm, not photometric

Observing Summary:

Started out with clear patches and heavy high cloud spun off from 
storms to the E and S.  For the first half the clouds were more
there than not, and I stopped observing and partially closed up a
couple of times; I still managed to get a fair amount by finding
targets in the open spots.  Around midnight the sky cleared off,
more or less, and the seeing improved, so the rest of the night
was pretty good.  Never photometric, I'd bet.  Equipment all
worked well, no new bugs.

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Submitted on 2007 Jul 16 [5:31:18]