[Ohishi, Okutomi, Shoda]

This is the report of the work done on 5/16. I am sorry for the late update.

We measured the PR3 position relative to the vacuum tank.
Taking the origin of the coordinate at the center of the top flange (See figure).

According to the 3D measurement, the position of the center of
RM HR surface: (99.2, -0.6, -592.8)
Side flange surface: (851.8, 160.4, -597.7).

According to the 3D CAD model, they should be
RM HR surface: (101, 0, -595)
Side flange surface: (850, 160, -595)

Assume that the Side flange surface is at the right position, the RM is off from the center by (0, -0.6, 4.9) mm.

Compared to the beam, the mirror position is (unknown, 3, 15) mm off.
It means that the beam goes 10 mm lower than the center of the beam duct, if we believe the both measurement.

Note that, in the test hanging, the RM is at (-2.3, -3.7, 1.4) mm.