MDM Observatory 2.4m Telescope Observer's Report for 2003 Dec 16

Observer(s): Rebecca Billmeier, Judy Yu
Institution(s): University of Michigan

Instrument: MDM 8K CCD

Worked for 12 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Clear, Winds Calm, very low humidity
   Mid: Seeing 1 arcsec, Clear, Winds Calm, very low humidity
   End: Seeing 1 arcsec, Clear, Winds Calm, very low humidity

Observing Summary:

1. Experienced power brownouts early in the night.
2. Guiding was pulled off strangely (when little wind) then 
   snapped back (twice early in the night, once during brownout).
3. Metal tube for dewar came out of rubber hose.  I pushed it
   back in but the ziptie is no longer around the metal part.
4. Problems with focusing (all night).  The TVguider camera is
   not at the same focus as the telescope. When the focus was
   adjusted to be great in the TVguider, the image showed donuts
   and vice versa.  The TVguider seems to always be about 25 
   focus points too low.  Karl Haisch noticed this focus problem
   too but it wasn't as severe then.  This was the worst problem
   of the night.

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Submitted on 2003 Dec 17 [5:29:42]