MDM Observatory 2.4m Telescope Observing Report for 2013 May 30

Observer(s): Fausnaugh/Villanueva
Institution(s): OSU

Instrument: OSMOS

Worked for 9 hours (all night)
Conditions were Non-Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 1 arcsec, Clear, Winds Calm
   Mid: Seeing 1.2 arcsec, Clear, Winds Calm
   End: Seeing 1.8 arcsec, Clear, Winds Calm

Observing Summary:

Weather was clear, no clouds.  Seeing started ok, but got worse
during the night.  About 03:50 UTC, humidity spiked to 77%, and
seeing worsened substantially. Afterword, humidity gradually
fell off to 52% at closing. 

A few times the guide probe had trouble finding stars.  We had to
manually pan around some to find them, but no issues otherwise.
Less aggressive (aggressiveness = 5) on probe solved problem from
last night.

------------------------------

Submitted on 2013 May 31 [4:54:36]