MDM Observatory 2.4m Telescope Observing Report for 2026 Sep 14

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

Instrument: OSMOS

Worked for 11 hours (all night)
Conditions were Non-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, Patchy Clouds, Winds Calm
   End: Seeing 1 arcsec, Clear, Winds Calm

Observing Summary:

Beautiful night, with a distinct green flash at twilight. The 
seeing was consistently better than average. Some cumulus came
through around 2 AM, but unlike last night it was a small batch.

I did have a few telescope jumps in fairly rapid succession a 
couple of hours east of the meridian.  

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Submitted on 2025 Sep 15 [6:35:19]