MDM Observatory 2.4m Telescope Observer's Report for 2004 Jul 01

Observer(s): Marshall
Institution(s): OSU

Instrument: CCDS

Worked for 8 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
   Mid: Seeing 1 arcsec, Clear, Winds Calm
   End: Seeing 1 arcsec, Clear, Winds Calm

Observing Summary:

Thanks to Bob's heroic efforts to get pinatubo back up, 
observing went smoothly tonight.  The only problem I had was 
with the pointing of the telescope: at certain ha and decs 
(most noticeably at ha=0 and dec=-15) the telescope had a huge 
amount of E-W wobble (about an arcmin)
 and in a few cases I couldn't get it to stay pointed at 
the target long enough to take an image.  Also, on almost every 
target (regardless of location in the sky) the telescope jerks 
the star W out of the slit (by only a few arcsecs) after 
it is positioned with the hand paddle, but then calms down once 
the guider is turned on.

Tomorrow night I will use the 1800 l/mm grating centered on 5185 A.

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Submitted on 2004 Jul 2 [4:17:01]