MDM Trouble Report for 2019 Apr 04

Telescope: 2.4m
Observer(s): Clowe, Shamloumehr (Ohio University)
Instrument: OSMOS

Problem(s) Encountered:
Telescope wouldn't stop slewing, instead oscillating in RA around
the desired position until we pressed the  stop  button, which
also stopped tracking.  Eric had us restart the TCS control 
system and adjust a bolt on the back of the telescope which
seemed to solve the issue.  Occasionally had double stars in the 
e-w direction, possibly still indicating an issue with the RA
drive/bearing (also had lots of extended PSFs from wind).
Couldn't guide for more than 5-10 minutes before losing the
guide star.  After reacquiring guide, the telescope often had
moved a few arcseconds, ruining mask alignment.

Specific problem with the oalign.py script - the boxes drawn from
the .oms file are flipped in in the y-axis compared to those
displayed in the image.  The rotator angle offset in the solution
also appears to have the wrong sign (although hard to tell as
we often lost guiding between acquisition images).

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Submitted on 2019 Apr 5 [0:57:40]