MDM Trouble Report for 2008 Apr 10

Telescope: 2.4m
Observer(s): Shields, Boettcher (Ohio University)
Instrument: CCDS

Problem(s) Encountered:
While moving rotator position near the end of the night, 
the rotator angle on the TCS display jumped discontinuously 
from 70 degrees to -580 degrees and continued to give nonsense
readings.  I positioned the rotator using reference marks on 
the mirror cell.  When I closed up for the night and put the 
rotator back to zero degrees, the readout appeared normal 
again on the TCS display.

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Submitted on 2008 Apr 10 [6:29:04]