Reports until 09:50, Tuesday 27 January 2026
H1 SUS (SUS)
rahul.kumar@LIGO.ORG - posted 09:50, Tuesday 27 January 2026 (88910)
HAM7 work - OPO AOSEMs (H1, H2, H3) re-centered.

Karmeng, Betsy, Jeff, Rahul

Following the recommendation given in LHO alog 88872, yesterday (01/26/2026, Monday) we went into HAM7 chamber and re-centered the three horizontal AOSEMs (H1, H2 and H3) as best as we could. All three AOSEM counts (raw inmons) are now between 11-15k. 

Next, Jeff will re-take the transfer function measurements and confirm if OPO is healthy.

Also, Sheila et al will re-confirm if the beam is well aligned with other suspension in HAM7 chamber.

OPO is currently unlocked and suspended.