MDM Observatory 2.4m Telescope Observing Report for 2009 Apr 15

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

Instrument: Echelle CCD

Worked for 10 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 2.5 arcsec, Clear, Winds Light & Variable, haze
   Mid: Seeing 2 arcsec, Clear, Winds Calm, haze
   End: Seeing 1.2 arcsec, Clear, Winds Calm, haze

Observing Summary:

I obtained observations of four clusters (one of which included
exposures of three separate sub-fields) plus three photometric
standard fields.  The seeing was highly variable, especially at
airmasses beyond ~1.3, which might be associated with the
ground-level haze observed during both evening and morning
twilight.

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Submitted on 2009 Apr 16 [6:07:59]