MDM Trouble Report for 2024 Jun 09

Telescope: 2.4m
Observer(s): John Thorstensen (Dartmouth)
Instrument: OSMOS

Problem(s) Encountered:
I had two problems with the dome. 

First, I discovered a sticky spot a little east of due north, where
it can hang up if it's trying to track through (i.e., small 
moves following a target as in the northeast).  It manifests as
a noise like a continuous cricket, which is something straining
to move the dome.  It does not seem to occur if the dome comes
into the spot with some momentum.

I described this problem in greater detail in an email to Eric
and Justin, anticipating that I'd be eager to get to bed around
now.

Second, as I was following a northern target west of the zenith,
the dome took off moving left and occulted the telescope.  This
seemed to happen spontaneously, and it looked as if the dome was
going to go all the way around when I stopped it by taking it off
TCS control and moved it back to the correct azimuth with the 
hand paddle. The dome readout always appeared to read correctly.

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Submitted on 2024 Jun 10 [5:10:05]