CAMAC Progress Report

                     Week Ending: January 04, 2002
                               Week: 49


Tom Folkers:
     1. No Report.

Tom Sargent:
     1. The observing run was fairly successful. The new servo 
        algorithm, using velocity averaging, controlled the velocities 
        well, but the absolute position error at the end of a slew was 
        still too large. That problem was solved by making the error 
        feedback term cummulative.  Seems to work pretty well now: 
        slews terminate within 10 or 20 arcseconds of the target with 
        little or no overshoot.  There are several servo parameters 
        that need to be experimented with yet, but it seems to work. 
     2. We determined the new pointing logic needs to be integrated 
        into the existing program better.  The recent change broke a 
        few functions in the program.
     3. We looked further at the analog noise problem in the SMT 
        computer room. Noise levels are remarkably high.

Pete Hubbard:
     1. At SMT encoder testing with HP Dynamic signal analyzed to find 
        noise sources that degrade encoder readings.

Dave Ashby:
     1. No Report.