J. Kissel, L. Dartez Jeff ran the calibration measurement suite. We processed it according to the instructions here. I then updated theCAL_DELTAL_EXTERNAL
calibration using the new report at/ligo/groups/cal/H1/reports/20240311T214031Z
.
Attaching the cal report. Optical gain: 2024-03-12: 3.322e+06 [DARM ERROR counts / meter] 2023-10-27: 3.34e+06 [DARM ERROR counts / meter] KappaC at the end of O4a: 1.006 Optical gain at end of O4a: 3.336e6 [DARM ERROR counts / meter] So the current optical gain is differs from what we had at the end of O4a by about 0.4%.
The calibration from this report has now been added to the LDAS cluster archive such that it shows up in the official infrastructure. It's location is https://ldas-jobs.ligo-wa.caltech.edu/~cal/?report=20240311T214031Z It was tagged as "valid" and "exported" as follows: On a local control room workstation (or on whichever computer system the report was created) $ cd /ligo/groups/cal/H1/reports $ touch 20240311T214031Z/tags/exported $ touch 20240311T214031Z/tags/tags $ arx commit 20240311T214031Z