MDM Trouble Report for 2015 Sep 16

Telescope: 1.3m
Observer(s): Terndrup (Ohio State)
Instrument: Echelle

Problem(s) Encountered:
The entrance window to Echelle has a big region of
condensation on it.  This prevents observing.

The rest of the setup went well:  I reset the telescope
coordinates, got a good focus, and verified guiding.

See the last several images with names a002*.fit for
examples of the problem.

Joel Zinn graciously offered to see about blowing nitrogen
over the window, but I directed him to keep observing on 
the 2.4m (he's as behind as I am) and not fiddle with
my telescope.  As I write (20:15), the humidity is steadily 
rising, so it might be a short night anyway.

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Submitted on 2015 Sep 16 [20:16:17]