MDM Observatory 2.4m Telescope Observing Report for 2021 Sep 07

Observer(s): Melso/Schiminovich
Institution(s): Columbia University

Instrument: CHaS

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:
   Fog from 1 until 4.
   Beg: Clear, Winds Calm
   Mid: Patchy Clouds, Winds Light & Variable
   End: Patchy Clouds, Winds Light & Variable

Observing Summary:

Successful instrument swap with CHaS up and running on the 2.4m.
The guider focus looks good, the telescope focus is unchanged, and the
spectrograph focus is very similar. The beginning of the night was clear
and we were able to get on sky quickly after a few setup/calibration procedures.
We acquired some excellent images and tested a new Halpha filter. The later half of 
the night clouded over and we closed due to high humidity. 

We did not hear any clanging. 


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

Submitted on 2021 Sep 8 [3:56:17]