jennifer.wright@LIGO.ORG - posted 12:09, Monday 20 July 2026 (91124)
Aligned SPI QPDs on Friday - belated alog
On Friday morning I used the picos in HAM2 and HAM3 to align the SPI A and B QPDs roughly. See image.
I used M_M2 to centre on QPDA and M_C1 to centre on QPDB.
The beam is roughly centred on both.
Images attached to this report
