Resolved: LUCI1 Offline – Failure of FM4 motor

LUCI1 is again available for science observations.  Some additional exercising of the fold mirror tilt mechanism appears to have freed up motion.  We don’t see any dropped steps in either direction now.  It is not possible to know for sure what the problem was without opening LUCI1, but for now that does not seem to be necessary.  LUCI1 has been re-aligned to the telescope and released for science observations.

Was: On Friday Jan 26, LUCi1 experienced a failure of the camera wheel.  This was quickly resolved the following day by our instrument support staff by increasing the drive current.  However upon resolution, it was found that one of the fold mirror #4 motors remains unmovable.  This motor is used to align the field of view on the detector.  This issue is actively being worked on but LUCI1 will remain offline until resolved.