MDM Trouble Report for 2012 Feb 22

Telescope: 2.4m
Observer(s): Kay et al. (Columbia)
Instrument: Mk III + Nellie + 600/5800

Problem(s) Encountered:
The instrument rotator wouldn't work at first. Could hear an
interlock or something click when CW or CCW was pushed, but no
rotation.  We tried power cycling the rotator electronics box,
which worked.  We had to do this more than once.  Lost a little
time consulting the manual when it first happened, but no
serious impact.

We experimented with the lens position on the slit viewing camera
and found that both the slit and objects looked sharper with the
position a little beyond where Tony set it (so, even a little
further from the Modspec position than the MkIII mark).

The dewar tubing near the probe needs to be reclamped -- LN2
leaks out.


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Submitted on 2012 Feb 23 [5:34:43]