MDM Observatory 2.4m Telescope Observing Report for 2010 Jun 29

Observer(s): Tobin and Hsu
Institution(s): Michigan

Instrument: TIFKAM

Worked for 4.5 hours (part of the night)
Conditions were Mixed most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.3 arcsec, Patchy Clouds, Winds Light & Variable
   Mid: Seeing 1.0 arcsec, Patchy Clouds, Winds Calm
   End: Clear, Winds Moderate

Observing Summary:

Night started off with some heavy clouds and it gradually cleared
up around 10pm. We imaged one field and took spectra of 1 target.
Around 0315 the image quality went really bad, we initially thought
it was seeing, upon trying to refocus the image showed the 
characteristic triangular shape of the air bags deflating. The
mirror support PC never set off an alarm, however the total forces
were substantially lower than what I remember them being. We then
stopped the telescope in-place and closed for the night.

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Submitted on 2010 Jun 30 [3:48:05]