Reports until 19:42, Tuesday 03 June 2025
H1 ISC
elenna.capote@LIGO.ORG - posted 19:42, Tuesday 03 June 2025 (84779)
Lockloss at Laser Noise Suppression- REFL B bad?

Oli, Elenna

We tried running Laser Noise Suppression, with the risk being that REFL B settings may not be right for the CARM control. Indeed, Oli and I watched the guardian log and it appears that the lockloss was exactly concurrent with the ramping on of REFL B as a second CARM sensor.

Georgia has previously checked the phasing, so I am not certain what the issue could be. If we get a chance to go through this state again tonight, I'll try stepping through everything but the CARM sensor change to confirm that is the issue.