RickS, TravisS, SudarshanK

Using the same procedure used at END-X (LHO alog 29873), we optimized the Pcal beam locations at END-Y today. 

In each of these figure, the optimal locations, 111.6 mm from the center of the face of the optic in both positive and negative y direction, are denoted by red cross and the actual pcal beam locations by cyan circle.

Attached figure (1) shows the beam before they were optimized.  The offsets ([xoffset, yoffset]) from the optimal locations for upper and lower beam were: U[1.36, 7.58] and L[3.18, -8.60] in mm and uses standard co-ordinate sign convention.

Attached figure (2) shows the beam after they were steered to their optimal positions using the Pcal transmitter module steering mirrors.  The new offsets from the optimal locations are U [-0.96, -0.67] and L[-0.59, 0.39].