MDM Observatory 2.4m Telescope Observing Report for 2017 Apr 01

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

Instrument: modspec + echelle CCD

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

Seeing and Weather:
   High Humidity from start until 8PM.
   Beg: Seeing 1.5 arcsec, Clear, Winds Moderate, variable seeing
   Mid: Seeing 1.5 arcsec, Clear, Winds Moderate, variable seeing
   End: Seeing 1.5 arcsec, Clear, Winds Moderate, variable seeing

Observing Summary:

A snow squall came through just before dinner, complete with 
blowing fog.  Up top it cleared off after dinner, but fog blew
over the southwest ridge from the east for a while after this;
it all blew away and the RH dropped to a nice safe level by the 
end of twilight, when I opened.  After that it was smooth sailing
except for (1) some poor seeing and (2) loss of the internet 
for about 3 hours in the middle of the night.  I called the 4m
and they verified that it was a mountain-wide outage, so our 
nice new fiber is apparently fine.  

Dome was off by about a degree at the end of the night.

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Submitted on 2017 Apr 2 [6:07:47]