MDM Observatory 2.4m Telescope Observing Report for 2020 Jan 17

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

Instrument: OSMOS/B

Worked for 13 hours (all night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1.5-2 arcsec, Clear, Winds Calm
   Mid: Seeing 1.5-2 arcsec, Clear, Winds Light & Variable
   End: Seeing 1.5-2 arcsec, Clear, Winds Light & Variable

Observing Summary:

Cirrusy during the afternoon, but cleared off well.  Humidity
started rising after sunset, but then rapidly declined and is now
only a few percent.  Clear all night; the seeing was decent.  A 
very productive night with no technical faults.  

Remarkably, when I went out in the early evening, there was no
perceptible breeze.  

------------------------------

Submitted on 2020 Jan 18 [7:27:56]