MDM Observatory 2.4m Telescope Observing Report for 2019 Jan 10

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

Instrument: OSMOS/B

Worked for 4.5 hours (part of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from START until 8PM.
   Beg: Seeing 1.3 arcsec, Overcast, Winds Light & Variable, High Humidity
   Mid: Seeing 1.6 arcsec, Clear, Winds Light & Variable, High Humidity
   End: Seeing 1.5 arcsec, Clear, Winds Calm, High Humidity

Observing Summary:

It was a roller coaster ride of humidity tonight.
Clouds and high humidity delayed opening until 8PM.
About an hour and a half later, the humidity shot up above
the observing limit again, so I closed up at that point.
Humidity decreased to observable levels around 12:30.
Starting at around 2:45 the humidity started more slowly
rising. It exceeded the observing limit again at 3:30, so
I closed once again (if I wasn't good at that before,
well...) for what would be the rest of the night.


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Submitted on 2019 Jan 11 [5:08:30]