MDM Observatory 2.4m Telescope Observer's Report for 2002 May 18

Observer(s): Vestergaard
Institution(s): OSU

Instrument: CCDS

Worked for 8 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 2-3 arcsec, Cirrus, Winds Calm
   Mid: Seeing ~2 arcsec, Clear, Winds Light & Variable
   End: Seeing ~1.5 arcsec, Patchy Clouds, Winds Moderate, ~20 miles/hr winds

Observing Summary:

The cirrus present at sunset dissipated about an hour or so
thereafter. There was at most a thin layer of cirrus (around
moon at least), but didn't affect the observing much. Around
2am the seeing was very unstable (jumpy). The heavier cirrus
and clouds that I saw later, interrupting the observing, was
probably coming in over us then. At sunrise there was patchy
cirrus/clouds over most of the sky. The clouds/cirrus didn't
affect the observing significantly.
Telescope and instrument behaved well.

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Submitted on 2002 May 19 [5:03:44]