MDM Observatory 2.4m Telescope Observer's Report for 2004 Jul 09

Observer(s): J. Halpern
Institution(s): Columbia U.

Instrument: Echelle CCD Direct

Worked for 9 hours (all night)
Conditions were Non-Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1.0 arcsec, Patchy Clouds, Winds Calm
   Mid: Seeing 0.9 arcsec, Cirrus, Winds Calm
   End: Seeing 0.9 arcsec, Cirrus, Winds Calm

Observing Summary:

This version corrects the previous one.

A pretty good night, after some initial clouds.  The seeing
improved as well.  Some brief problems with the tracking, but
not bad enough to affect the observing plan. Commercial power
dropped out at 5:00am while doing sky flats.  UPS kicked in
and was I able to work right through it.  Mirror AC is now
cooling.

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Submitted on 2004 Jul 10 [5:33:18]
NOTE: This report replaces the previous 2.4m telescope
      observing report for 2004 Jul 09