MDM Observatory 2.4m Telescope Observer's Report for 2007 Nov 23

Observer(s): Assef & Atlee
Institution(s): OSU

Instrument: CCDS/Retrocam

Worked for 1.5 hours (off and on through the night)
Conditions were Mixed most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Clouds all night.
   Beg: Overcast, Winds Moderate
   Mid: Overcast, Winds Moderate
   End: Seeing 1.3 arcsec, Patchy Clouds, Winds Moderate

Observing Summary:

There was intermittent cloud cover all night, which effectively
prevented any data from being recorded until approximately 5 AM.
We managed to collect observations of a spectroscopic standard and
a lens during some of the open patches, but for the most part the
brief clear intervals were spent re-opening and pointing the
telescope.  Focusing was also very difficult due to relatively
poor atmospheric conditions until the end of the night.

The strange pattern in the z-band images taken with Retrocam,
which first appeared part way through last night, has returned.
This has not prevented us from taking data, but we are unsure of
the usability of the data after flat-fielding.

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Submitted on 2007 Nov 24 [7:03:42]