MDM Observatory 2.4m Telescope Observing Report for 2015 Jun 28

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

Instrument: modspec+echelleCCD

Worked for 6 hours (last half of the night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds all night.
   Beg: Overcast, Winds Light & Variable
   Mid: Seeing 1 arcsec, Patchy Clouds, Winds Light & Variable
   End: Seeing 1 arcsec, Patchy Clouds, Winds Light & Variable

Observing Summary:

A thunderstorm passed by in the afternoon, close enough for
a lightning shutdown.  When I brought things back up I found
that HP3 was reading the normal 30 pounds, so I did not type
the h3 command to the airbag computer.  We had partial 
clearing around 11, and battled patchy clouds for the rest
of the night, but it was mostly clear for the last hour or
more; HP3 was normal every time I looked at it.  Seeing was
surprisingly good.  

I did notice that the out-of-focus images are bright in the
southeast quadrant, almost a diamond-ring effect, suggesting 
that we're not quite all the way there yet on the collimation,
but I seem to remember it being somewhat like that in the past. 

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Submitted on 2015 Jun 29 [5:02:35]