MDM Observatory 2.4m Telescope Observing Report for 2019 Jul 07

Observer(s): L. Kay, E. Moran
Institution(s): Columbia

Instrument: CCDS

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

Seeing and Weather:
   Beg: Seeing 1.5 arcsec, Clear, Winds Calm
   Mid: Seeing 1.7 arcsec, Clear, Winds Calm
   End: Seeing 1.7 arcsec, Clear, Winds Calm

Observing Summary:

Awesome night.  Clear skies throughout.  The new slit viewing
camera for CCDS is fantastic.  We mastered the display stretch
and were able to acquire (and get good data for) very faint
objects.  This is a vast improvement over the old SBIG camera.
We prefer to invert the color map using the arrow button between
the min and max boxes in the screen stretch window. Seems easier
to pick out faint sources and other details.  Guiding worked
great. One thing we found is that when switching from expose to
track in MaximDL, the stretch in little window with the guide
star always gets messed up after one refresh.  But if you kill
this window, another one comes up automatically with the proper
stretch (which persists).  We did a lot of instrument rotations
(every field) to observe at/near the parallactic angle (and, in
some cases, to place two nearby targets on the slit).  Worked
very well.



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Submitted on 2019 Jul 8 [4:20:25]