MDM Observatory 2.4m Telescope Observing Report for 2011 Sep 20

Observer(s): Erika Hamden
Institution(s): Columbia

Instrument: CCDS

Worked for 10 hours (all night)
Conditions were Photometric most of the night.
Problems were encountered, see the separate trouble report for details.

Seeing and Weather:
   Beg: Clear, Winds Calm
   Mid: Clear, Winds Calm
   End: Clear, Winds Calm

Observing Summary:

Overall a very good night- lots of targets observed, few problems.  Clear skies.

Only issue is that central wavelength of the grating isn't correct.  When put on the same value as yesterday (5400 A), the Hg lines were shifted over pretty far.  I had to set the central wavelength as 7500 A to get close to the same lines in the same places as yesterday.

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Submitted on 2011 Sep 21 [5:27:44]