MDM Observatory 2.4m Telescope Observing Report for 2026 Jan 06

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

Instrument: OSMOS

Worked for 7 hours (all night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds all night.
   Beg: Seeing 1+ arcsec, Patchy Clouds, Winds Light & Variable
   Mid: Seeing 1+ arcsec, Patchy Clouds, Winds Light & Variable
   End: Overcast, Winds Light & Variable

Observing Summary:

Clouds all night, but variable in the first half with some 
stretches that were reasonably good interspersed by half-hourish
intervals of opaque high cloud.  The satellite IR images showed
a ragged band of cloud streaming in from the SW, with gaps in
it.  Around 1 AM it finally clouded up for good - no more gaps
coming, so I closed around 1:30 and filled the dewar.  

I got infinity times as much data tonight as I had expected, so
I guess that's a plus.

After I closed I noticed the weather was saying showers were 
possible and the radar was showing some echoes.  It's supposed
to start raining in earnest in the morning -- I'm definitely
staying closed, and hence filing this report now around 2 AM.


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Submitted on 2026 Jan 7 [2:40:33]