To align GRX and find the good alignment of PR3, we first opened GVs between IX/EX and X arm.
Then, I tweeked PR3 alignment to maximize the GRX PD output, which is aligned just before the vacuum evacuation (klog29131).

After finding the good alignment, we checked the single GRX beam position on ITMX.
Figure 1 and 2 show the Tcam photos with GRX before the earthquke and now.

Though current beam seems slightly shifted from the beam before the earthquake, the amount of shift is not so large and maybe acceptable.
So, we didn't move the POMs yesterday.

After confirming these things, works in the Akutsu-san's reports followed.