MDM Observatory 2.4m Telescope Observer's Report for 2006 Jun 16

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

Instrument: modspec + echelle CCD

Worked for 9 hours (all night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Clear, Winds Calm
   Mid: Seeing 1 arcsec, Clear, Winds Light & Variable
   End: Seeing 1 arcsec, Clear, Winds Light & Variable

Observing Summary:

Excellent night, photometric with good seeing, and dark until 
just before midnight.  I didn't have any asynchronous read errors
tonight; Bob replaced a part in the fiber optic communication
box yesterday, so this may have fixed the problem.  However,
it's so intermittent that I may simply have been lucky.

The dome went into a fugue state during AM twilight; this cures
itself eventually, but since I wanted to get some observations 
in before dawn I turned off the yellow auto-enable button and
rotated the dome by hand.  After the observation was done
(a few minutes later) I re-set the dome and it was OK.  By
this strategy I was able to keep working while the fugue state
went through its paces.

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Submitted on 2006 Jun 17 [5:15:33]