Alexa, Kiwamu, Koji, Stefan

Today we started with centering the TMS pointing on the ITM using the baffle diodes (with ITMX misaligned) :

Baffle PD1: H1:AOS-ITMX_BAFFLEPD_1_POWER maximized:
H1:SUS-TMSX_M1_OPTICALIGN_P_OFFSET 105,5
H1:SUS-TMSX_M1_OPTICALIGN_Y_OFFSET -208.5

Baffle PD4: H1:AOS-ITMX_BAFFLEPD_3_POWER maximized:
H1:SUS-TMSX_M1_OPTICALIGN_P_OFFSET 174.0
H1:SUS-TMSX_M1_OPTICALIGN_Y_OFFSET -270.0

Center position:
1:SUS-TMSX_M1_OPTICALIGN_P_OFFSET 139.75
H1:SUS-TMSX_M1_OPTICALIGN_Y_OFFSET -239.25


Next we established the visibility into HAM1, i.e. the range of PR3 alignments that result in the x-arm green beam reaching HAM1. The orthogonal slider was left at the initial position.

The numbers below are PR3 alignment numbers (i.e. H1:SUS-PR3_M1_OPTICALIGN_P_OFFSET and H1:SUS-PR3_M1_OPTICALIGN_Y_OFFSET):

initial position:  pit -263.8, yaw -272

disappear up    pit -189
disappear down  pit -330 (spot visible in ham 2, glow starting at -320)
disappear north yaw -188
disappear south yaw -320

on swiss cheese baffle down  pit -353
on swiss cheese baffle up    pit -176
on swiss cheese baffle south yaw -366 (glow on cam from tower yaw -320)
on swiss cheese baffle north yaw -178


center visible: pit -254.5 yaw -254 (using -320 instead of -330 for pit down limit)

center swiss cheese baffle: pit -264.5 yaw -272