MDM Observatory 2.4m Telescope Observer's Report for 2005 Nov 19

Observer(s): S. Lepine
Institution(s): AMNH

Instrument: Direct + Echelle

Worked for 12 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1.7 arcsec, Clear, Winds Moderate
   Mid: Seeing 1.5 arcsec, Clear, Winds Moderate
   End: Seeing 2..0 arcsec, Clear, Winds Light & Variable

Observing Summary:

Clear skies, but conditions a bit windy, so the seeing
was not so good. Wind was gusty before midnight, and I
closed the garage door to reduce telescope wobbly motion.
Twice during the night, the temperature dropped abruptly 
and the seeing degraded as the primary mirror became warmer 
than ambient. I tried closing the mirror covers 15-20 
minutes to cool the mirror, and it did appear to improve 
the seeing aftewards, which was then good enough for parallax
measurements.

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Submitted on 2005 Nov 20 [7:05:05]