MDM Trouble Report for 2009 Mar 11

Telescope: 2.4m
Observer(s): Thorstensen (Dartmouth)
Instrument: direct echelle + Buckeye FW

Problem(s) Encountered:

The RA readout is slipping intermittently, by several minutes at 
a time.  This happened three times - the last time it happened
I caught it before I went off the object I was on and so was
able to reset the readouts trivially, but the other two I had
to go to the zenith and reset on the tilt meters; all told I 
lost about half an hour.  I know the encoder itself was swapped
out today, so it would seem that the encoder is (and always was)
fine and the problem lies elsewhere. 

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Submitted on 2009 Mar 12 [6:46:56]