MDM Observatory 2.4m Telescope Observing Report for 2009 Sep 06

Observer(s): Oey, Pellegrini
Institution(s): Michigan

Instrument: CCDS

Worked for 7 hours (most of the night)
Conditions were Mixed most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   High Humidity from 15:00 until 21:30.
   Beg: Seeing 1 arcsec, Overcast, Winds Calm
   Mid: Seeing 1.3 arcsec, Cirrus, Winds Calm
   End: Seeing 1.3 arcsec, Clear, Winds Calm

Observing Summary:

This morning we initiated a shutdown of the telescope and instrument computers at approximately 11:00am. This was
 due to a passing thunderstorm and immediate threat of lightning. Threatening clouds remained, so we waited until early 
evening to reboot the computers with no major issues (see  Trouble Report ). The persistence of high humidity outside the dome 
forced us to remain closed until 09:30pm. Onice open we obtained standard star observations in between clouds.
Despite clear patches, clouds obscured our targets until approximately 11:30. At that time we began observing our program 
 with no further interruptions until dawn.

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Submitted on 2009 Sep 7 [6:21:17]