MDM Observatory 2.4m Telescope Observing Report for 2014 Jan 22

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

Instrument: modspec + Echelle CCD

Worked for 13 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1+ arcsec, Cirrus, Winds Light & Variable
   Mid: Seeing 1+ arcsec, Cirrus, Winds Light & Variable
   End: Seeing 1+ arcsec, Cirrus, Winds Light & Variable

Observing Summary:


Mostly pretty clear, with some cirrus and a little bit of
breeze now and then.  Seeing was decent.  Got quite a bit done.

No troubles to report, but the rotator angle gave crazy readings
(in the 100s) on one occasion.  

I rotated back toward zero until it gave a realistic reading,
went back toward the angle I wanted, and the rotator angle
displayed correctly.  This is a known bug of completely
unknown origin, difficult to find because it occurs so seldom.

Got a spectrum of the M82 supernova; I don't imagine mine was
the only one taken last night.

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Submitted on 2014 Jan 23 [7:21:52]