MDM Trouble Report for 2009 Nov 1

Telescope: 2.4m
Observer(s): D. Cotto-Figueroa, D. Riethmiller (Ohio University)
Instrument: Echelle

Problem(s) Encountered:
During our opening checklist, the TCS computer froze, and we lost
control of the telescope's drives.  The telescope tipped over far
enough to exceed what the partially rebooted TCS computer called
a soft limit before stopping, and we saw liquid nitrogen leaking 
from the dewar.  We used the hand paddle on the west fork tine to
point to the zenith again, topped off the dewar (turns out it 
hadn't lost as much nitrogen as we thought), and followed the 
remaining steps in the manual for restoring coordinates
using the tilt meters (section 5.4.7).  We had no other problems
for the remainder of the night.


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Submitted on 2009 Nov 2 [6:53:21]