MDM Observatory 2.4m Telescope Observing Report for 2018 Sep 28

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

Instrument: modspec + echelle ccd

Worked for 11 hours (all night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

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

Observing Summary:

A few clouds around in afternoon but appeared to be a very clear
night.  Early on discovered that the slit-viewing camera was
not at optimal focus -- corrected that in twilight.  It had been
that way the whole run, but it's a rather subtle problem to 
diagnose.  Productive overall.

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Submitted on 2018 Sep 29 [6:16:57]