MDM Observatory 1.3m Telescope Observing Report for 2020 Dec 16

Observer(s): Jules Halpern
Institution(s): Columbia U.

Instrument: Echelle Direct

Worked for 13 hours (all night)
Conditions were Photometric most of the night.
No equipment or software problems were encountered.

Seeing and Weather:
   Beg: Seeing 2 arcsec, Clear, Winds Light & Variable
   Mid: Seeing 1.7 arcsec, Clear, Winds Calm
   End: Seeing 1.7 arcsec, Cirrus, Winds Calm

Observing Summary:

A problem-free night with decent seeing, no wind.
Could observe faint targets at high airmass.
There was one diagonal jump, a legacy issue.
Over the years I have noticed that these frequently
occur at HA = +2.0, like tonight.  After the jump
it continues to drift slowly in the same direction.

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Submitted on 2020 Dec 17 [6:32:36]