MDM Observatory 2.4m Telescope Observer's Report for 2007 Oct 12

Observer(s): Mangala Sharma and Tom Statler
Institution(s): Ohio University

Instrument: 8K CCD camera

Worked for 11 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Fog from 6AM until dawn?.
   Beg: Seeing 1.3 arcsec, Cirrus, Winds Light & Variable
   Mid: Seeing 1.7 arcsec, Clear, Winds Moderate
   End: Seeing 1.6 arcsec, Fog/Low Clouds, Winds Light & Variable, Fog rolled in 6AM

Observing Summary:

When opening, we found the instrument dark hatch was already open,
even though we'd closed it earlier in the morning. It probably
slid open when the telescope mirrors were being cleaned in the
afternoon. It would be nice to secure the dark hatch when
it's closed.
Conditions were non-photometric, and seeing varied from about
1.3 to 2 arcsec. Transparency was significantly reduced compared
to last night. 
A most amazing sight was the morning fog rushing in - 
humidity was about 45% a little before 6AM, and then 
80% around 6:10AM! We shut the mirror covers in a hurry when we
went out to the telescope and noticed the suddenly grey skies.
There was no other excitement either with the telescope or
the camera, which behaved predictably all night long.

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Submitted on 2007 Oct 13 [6:31:08]