MDM Observatory 2.4m Telescope Observing Report for 2009 Jun 02

Observer(s): John Tobin and Hsin-Fang Chiang
Institution(s): Michigan

Instrument: TIFKAM

Worked for 9.0 hours (all night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Clouds from 0400 until 0500.
   Beg: Seeing 1.0 arcsec, Clear, Winds Calm
   Mid: Seeing 1.1 arcsec, Clear, Winds Calm
   End: Seeing 1.2 arcsec, Patchy Clouds, Winds Calm

Observing Summary:

We had a pretty good night of observing. The conditions were 
photometric until about 4am when some clouds started forming
to the northwest. We observed several target fields in H and
K bands and one field in J band that had H and K from 2 nights
ago. During the night the focus for J-band seemed to be
about 5-10 units higher than the focus of H,K bands. I hadn't
noticed this offset in focus between filters before.

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Submitted on 2009 Jun 3 [11:54:35]