MDM Observatory 2.4m Telescope Observing Report for 2011 Sep 07

Observer(s): Matthias Dietrich
Institution(s): OSU

Instrument: OSMOS

Worked for 5.5 hours (last half of the night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 19:00 until 23:30.
   Beg: Seeing 1.9 arcsec, Patchy Clouds, Winds Calm, heavy cirrius
   Mid: Seeing 1.0 arcsec, Cirrus, Winds Calm
   End: Seeing 0.9 arcsec, Clear, Winds Calm

Observing Summary:

Opened dome at 19:05, checked pointing and determined the focus.
While working on the slit acquisition of the first target the
cloud cover went up to about 90%. After waiting for about 30min,
closed dome (20:20). At 23:40 the dome was opened again, the
strong cirrus appeared to decrease. Again pointing and focus.
During the rest of the night 2 standard stars and three BALQSOs
were observed. The seeing was around 2 arcsec at the beginning of
the night, in the middle of the night ~1 arcsec, and at the end of
the night even a little better than 0.9 arcsec.

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Submitted on 2011 Sep 8 [6:09:30]