Sheila, Ryan Short, Camilla

We moved the periscope on ISCT1, about 1 inch in the +X direction.   This leaves the refl beam on the -Y side of it's top periscope mirror, and the POP beam on the +X side, but neither of them should be clipping.  The beam is not well centered on the refl bottom periscope mirror, but we did not fix this, as we'd have to move everything in the refl air path to fix it.  

Periscope position before we moved it

POP beam on top periscope mirror

REFL beam on top periscope mirror

 Note, we moved the pop top periscope mirror in the +X direction in 91481, Keita put some photos of how the beams were left after in chamber work 89761