Following instructions from the TakingCalibrationMeasurements wiki, at 18:33 UTC I dropped H1 out of observing to run the usual calibration sweeps. Calibration monitor and report attached.
Broadband - 18:34:20 to 18:39:38 UTC
Simulines - 18:40:57 to 19:04:04 UTC
File written out to: /ligo/groups/cal/H1/measurements/DARMOLG_SS/DARMOLG_SS_20251004T184057Z.hdf5
File written out to: /ligo/groups/cal/H1/measurements/PCALY2DARM_SS/PCALY2DARM_SS_20251004T184057Z.hdf5
File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L1_SS/SUSETMX_L1_SS_20251004T184057Z.hdf5
File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L2_SS/SUSETMX_L2_SS_20251004T184057Z.hdf5
File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L3_SS/SUSETMX_L3_SS_20251004T184057Z.hdf5
Comparing the broadband from this Saturday to the previous broadband on Sept 27, there has been a significant change in the calibration uncertainty. We know that there was a small change in the overall calibration since the last model push on 8/28, which could be related to the power outage. However, I can't think of any significant change in the last week that could account for this difference.
We do know that:
- Kappa C since the power outage is lower by 1%, and,
- Kappa TST has been increasing for more than a month now, and is now 3% higher, likely due to charging.
However, both of those bullet points should be accounted for by the TDCFs.
