MDM Observatory 2.4m Telescope Observing Report for 2018 Sep 25

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

Instrument: modspec + echelle ccd

Worked for 10 hours (most of the night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Patchy Clouds, Winds Light & Variable
   Mid: Seeing 1 arcsec, Clear, Winds Light & Variable
   End: Seeing 1 arcsec, Patchy Clouds, Winds Light & Variable

Observing Summary:

Mostly quite a good night, albeit a very bright one.  Mostly 
clear, though with rafts of brightly-lit altocumulus coming 
through from time to time.  Seeing was much better than last
night.

I figured out why the telescope was stalling in mid-slew, or at
least a correlation.  I often start slews before turning off the
guider, because it used to not make any difference.  If you do 
that with the new TCS, the slew immediately hangs.  

Closed a tad early in twilight because of a cloud bank that 
materialized just before.  

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Submitted on 2018 Sep 26 [5:34:00]