[ Den / Kiwamu]
We have realigned the MC suspensions so that the WFS servos are smoothly engaged.
Now it seems working fine. The beam pointing to the interferometer also looks okay.
The WFSs control kept failing to engage the servos because of large misalignments in the MC suspensions.
When the TEM00 was locked, the transmitted light was only about 1200 counts and the reflected light was about 2.8 counts.
We tweaked MC1, MC2 and MC3.
When I came to the 40m this afternoon, the MC was unlocked. Here is the trend of MC_F for last 2 hours