The attached image is the image that can be taken from the Panasonic web camera from the window at the -X side of the PR3 vacuum tank(Photo). About 80 times multiplication is necessary to see this image.
We can see the roughly right side of the PR2 surface. The center of PR2 seems to be just near the edge of the baffle hole (Image).
On the other hand, we can see also the surface of the PR2 from the window at -X-Y side of the PR2 vacuum tank with the acute angle. However, maybe we can judge the beam position hight. At present, a GigE camera is set on this window from O3GK, maybe. I don't know wheather we can use this cam or not.