After Kiwamu adjusted the MC2 PIT to accommodate the limited range of the PZT1 ( elog ), I remeasured the spot positions today.
As expected there is a translation of the beam axis to one side (Up? Down?) .
I wonder how a beam translation by 5mm solved the PZT1 angular range limitation problem (?!)
The MC alignment was bad and I wondered if it is because MC shifted or because the input PSL beam shifted. So I remeasured the spot positions and find that MC2 Yaw has shifted a lot. Todays measurements are in Cyan boxes above. The shift in MC3P is probably an associated shift due to some pit--yaw coupling. So I am going to move MC2 and try to align the MC to the PSL.