MDM Observatory 2.4m Telescope Observing Report for 2018 May 21

Observer(s): Rupert
Institution(s): MDM

Instrument: OSMOS/B

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

Seeing and Weather:
   Beg: Clear, Winds Calm, Dust
   Mid: Seeing 1.6 arcsec, Clear, Winds Light & Variable
   End: Seeing 1.4 arcsec, Clear, Winds Light & Variable

Observing Summary:

There was an abundance of dust in the air during
the early goings. Didn't open up until around 10:30.
The rest of the night was mostly fine. There seems to
be something weird going on with the HgNe lamp. Sometimes
a majority of the spectral lines do not show up in the
image. I had mild success taking a different arc lamp
image, then going back to the HgNe lamp, but not 100%.

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Submitted on 2018 May 22 [5:34:24]