Reports until 06:41, Thursday 06 March 2014
H1 ISC
kiwamu.izumi@LIGO.ORG - posted 06:41, Thursday 06 March 2014 - last comment - 06:44, Thursday 06 March 2014(10576)
Green WFS turned off, feedback offloaded to ETMX and ITMX, then ETMX misalgined for PRMI

For the blue team:

Before I started the PRMI commissioning I switched off the WFS. I disabled the signals at the input side i.e. ALS-X_WFS_DOF_1(2)_P(Y)_INPUT.

The green light was locked on the 00 mode, although, as Keita wrote in his entry (alog 10571), the spot on the ISCT1 CCD monitor seemed a bit too low and shifted toward the right hand side on the monitor compared with the black circle on the monitor.

Because I wanted to maintain the same arm alignment, I manually offloaded the feedback to the OPTICALIGN biases of both ETMX and ITMX. Then I misalgiend ETMX by the guardian.

Comments related to this report
kiwamu.izumi@LIGO.ORG - 06:44, Thursday 06 March 2014 (10577)

Of course the new biases after the offload were saved through the ASC IFO screen. One can go back to the same alignment by simply telling the guardian to align ITMX or ETMX.