I locked the PRMI and remeasured the sensing matrix, this time at 580Hz. The excellent news here is that the matrix looks quite similar to the one measured the other day, recorded in elog 8632. Yay! I'm not sure why the REFL11 MICH error is so much larger this time around.
Raw data: .../scripts/LSC/SensMatData/sensematPRM_2013-05-23.202312.dat
Sensing Matrix, units = cts/meter, phase in degrees
PRCL Mag PRCL Phase MICH Mag MICH Phase
AS55 5.485E+08 162.424 2.679E+09 25.608
REFL11 1.126E+13 -122.832 1.618E+11 85.296
REFL33 2.658E+11 -87.973 8.910E+09 79.226
REFL55 3.012E+11 -99.534 1.210E+10 12.486