MDM Observatory 2.4m Telescope Observing Report for 2010 Jun 01

Observer(s): Bird
Institution(s): OSU

Instrument: OSMOS

Worked for 7 hours (all night)
Conditions were Overcast most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Clouds from 6  until 12.
   Beg: Seeing 1.5 arcsec, Overcast, Winds Light & Variable
   Mid: Seeing 1.3 arcsec, Fog/Low Clouds, Winds Light & Variable
   End: Seeing 1.3 arcsec, Clear, Winds Light & Variable

Observing Summary:

Early: Thick clouds at low altitude. Could not find guide stars 
for target fields. Guider was not behaving correctly. Bob finally
 figured out it was the guider parameter  Fraction of guiding
 movement..  (this phrase is approximate). The value was changed
 from 1.0 to 0.5 and the guider behaved thereafter. We do not know
 the reason for this. Lost several hours due to weather and guider
 issues. On sky with no issues just after midnight. OSMOS behaved
 well. User error prevented it from being used fully. See email to
 Stanek, Khan, and Henderson if interested. 

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Submitted on 2010 Jun 2 [6:47:58]