MDM Observatory 2.4m Telescope Observer's Report for 2002 Jun 06

Observer(s): Monique Aller
Institution(s): University of Michigan

Instrument: Wilbur + MODSPEC

Worked for 10 hours (most 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 1.4 arcsec, Clear, Winds Calm
   Mid: Seeing 1.8 arcsec, Patchy Clouds, Winds Calm
   End: Seeing 2.5 arcsec, Clear, Winds Moderate

Observing Summary:

I observed 4 galaxies and a large number of template stars
(dwarf and giant G,K). Unfortunately, I lost about an hour
in the middle of the night when a patch of clouds came in
and prevented me from locating my galaxies (or even any nearby
bright stars for a while). These clouds left by 1:30 (local time)
and then there were gusty winds of 15 mph which affected the
mirror temp and led to much poorer seeing in the latter part
of the night.
Problems:
1. I accidentally snapped the hose which attaches the vat
to the dewar so I can no longer fill the dewar.
2. The rotator encoder glitched when I was rotating it slowly
and lept from ~5 to something like -663. I went back the other
direction and it went back to 5 and the problem did not repeat
itself. 

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Submitted on 2002 Jun 7 [4:37:38]