MDM Observatory 1.3m Telescope Observer's Report for 2005 Apr 11

Observer(s): Martin Bureau, Bettina Gerken
Institution(s): Oxford University

Instrument: Direct Imaging, f/7.6, echelle

Worked for 10:40 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 1.5 arcsec, Cirrus, Winds Calm
   Mid: Seeing 2.0 arcsec, Cirrus, Winds Calm
   End: Seeing 1.5 arcsec, Cirrus, Winds Calm

Observing Summary:

Continuation of an optical imaging follow-up of the Sauron survey of
early-type galaxies. The sky was mostly clear with scattered cirrus
all night, with a seeing almost always around 1.5 , up to 2.0  at some
moments. All of the night was thus usable but we did loose some time
due to unexpected/unexplained problems with the bias level of the
CCD. This prevented us from acquiring sky flats in the evening (30 min
lost) and one object at the end of the night (75 min lost).

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Submitted on 2005 Apr 12 [6:44:51]