Kar Meng, Sheila
Today we shifted the beam in SFI2 to be more centered on the second polarizer, to hopefully get rid of our scattered light shelf, and aligned the beam coming off the VIP to an iris in front of ZM4 and two irises on SQZT7, by moving B:M3 and B:M4. After this we let the beam through the viewport into HAM5. We see some light on AS_C, AS_A and AS_B, but it is not well aligned onto those diodes and we had trouble engaging the AS centering loops.
Since we shifted the beam in SFI2 we have misaligned it onto the FC QPDs, we can see this beam is now clipped on the lens D:L1. We were able to realign onto this my moving B:M3, but this misaligned the beam in the main path irises.