MDM Observatory 2.4m Telescope Observing Report for 2017 Mar 30

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

Instrument: modspec + echelle CCD

Worked for 1.5 hours (part of the night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.5-2 arcsec, Clear, Winds High
   Mid: Clear, Winds High
   End: Overcast, Winds Moderate

Observing Summary:

Beautifully clear at first, but extremely windy.  
Caught one time-critical observation at the start, but then 
closed because there was  too much blowing debris.  
Winds were gusting above the 40 mph limit at times.  Kitt 
Peak never opened.  

Winds did moderate some later, but there was still a lot
of stuff in the air; then it clouded up around 3, and 
finally around 4:30 there was some rain with graupel mixed
in. ('Graupel' means low-density icy pellets which are not
quite hail but definitely not snow.  It turns out to be a useful
word around here.)

Dome failed during the observation, but I fixed it (see trouble 
report).

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Submitted on 2017 Mar 31 [4:53:03]