(Jeff, Jamie, Sheila, Alexa, Lisa)

Tonight we used ITMX ISI with the guardian paused. We had damping on stage 2, and on stage 1 X, RX and RY. For stage 1 we used the level 3 controllers that are loaded and a gain of 2.

Our goal for the night was to lock PRMI on the carrier. However, we would lose lock when we aligned PRM after locking MICH on mid fringe. We must be missing some setting. We had found the FM2, FM3, FM4 were turned off (probably for locking on PRMI sideband) on LSC_POPAIR_A_LF. So maybe we are missing something else, but we just don't know what. Also the counts on LSC_POPAIR_A_LF_OUT have decreased to 1.8 from 3. To handle this, we adjusted the normalization matrix and triggering values, but this did not seem to work. The MICH mid-fringe OLTF was consistent with the previous measurements. We also slowed down the ramp for aligning PRM, but this did not help.