From: Jon Brinkmann
Date: Wed, 21 Dec 2005 11:35:43 -0700
Subject: Re: 2.5m obslog 20051220 (MJD 53725)
> The mcp crashed during a spectro science exposure (01:44Z).  The
> telescope appeared to wander a bit as a result.  Craig Loomis was
> called.  It crashed again later during another science exposure
> (11:04Z).  We attempted to grab a process listing as Craig requested
> but were unable to do so.  See the main log for details.
While looking at the spectro problem in the murmur log, I saw large
numbers of messages akin to
2005-12-21 07:58:04Z sdssmcp    tUmbilical dsc_I_trcInfo Umbilical Position -758 moving down to 0
2005-12-21 07:58:04Z sdssmcp    tUmbilical dsc_I_trcInfo umbilical_move_pos: stopped moving down to -758 (0)
Since the imager is not mounted and the umbilical has been disabled for years,
the MCP shouldn't be attempting to move it.  Perhaps this is related to the
the MCP's instability.
Jon