Date: 2024/1/4
I took some Tcam images of ETMX and ETMY to check whether the Pcal beams moved a lot.
The Pcal alignment does not seem to have shifted significantly, as all beam spots are seen to be in the almost same position as before.
XPcal before(28th Dec)/after(Today)
YPcal before(28th Dec)/after(Today)
As for the glowing area in the upper left on the Y image, the cause is unknown.
Detailed report: link
When we closed the Pcal-Y shutters, the Tcam picture went dark.
So, the glowing area in the upper left on the Y image is caused by Pcal laser beam(s).
Date: 2024/1/9
With Satoru Ikeda
We checked the beam position at Tx module trapezoid area, then could not find any unexpected beam out from the Tx module.
So the glowing area in the upper left on the Y image should be caused by the main Pcal beam, which can be the refracted beam by the ETMY.
Also, we checked Pcal area at both Xend and Yend to see if there are any damage caused the earthquake, but no issues were found.
