MDM Trouble Report for 2014 Mar 17

Telescope: 2.4m
Observer(s): Schiminovich, Pearson, observing class (Columbia)
Instrument: Echelle direct

Problem(s) Encountered:
Had trouble locating guide star.  We weren't sure if it was
pointing or some other problem.  

Later in the night tried to diagnose, reset encoders, etc. and everything involving telescope pointing was good.

The guide probe seems to be the issue because each time we moved
to a new star the position of the star would shift (even
when returning to the original star).  Also at the end of
this it seems that the guider probe focus shifted drastically
producing a very large donut image.  It seems almost as if
something is loose in the guider probe hardware, and/or encoder is 
skipping, though not clear why that would affect focus.

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Submitted on 2014 Mar 17 [22:48:09]