Ran a broad band (171106UTC), then a simulines. This was after running a serparate bb and start of a simulines that I had to bail out of because I had not gone back to NLN_CAL_MEAS. This allowed Elenna and Sheila to decide on something else and we reran after they made some changes.
Simulines start:
PDT: 2025-07-24 10:16:43.573765 PDT
UTC: 2025-07-24 17:16:43.573765 UTC
GPS: 1437412621.573765
Simulines end:
PDT: 2025-07-24 10:40:03.824053 PDT
UTC: 2025-07-24 17:40:03.824053 UTC
GPS: 1437414021.824053
Files:
2025-07-24 17:40:03,654 | INFO | File written out to: /ligo/groups/cal/H1/measurements/DARMOLG_SS/DARMOLG_SS_20250724T1
71644Z.hdf5
2025-07-24 17:40:03,661 | INFO | File written out to: /ligo/groups/cal/H1/measurements/PCALY2DARM_SS/PCALY2DARM_SS_2025
0724T171644Z.hdf5
2025-07-24 17:40:03,666 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L1_SS/SUSETMX_L1_SS_2025
0724T171644Z.hdf5
2025-07-24 17:40:03,670 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L2_SS/SUSETMX_L2_SS_2025
0724T171644Z.hdf5
2025-07-24 17:40:03,675 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L3_SS/SUSETMX_L3_SS_2025
0724T171644Z.hdf5
I (with help and input from Sheila and Joe B) pushed a new calibration today before this report was run.
First, we tried pushing the 20250628T190643Z report, but again that "failed" because the broadband showed a higher uncertainty than expected, again. The kappa C value also dropped from 0.993 before the push to 0.985 after the push and TDCF burn in. We puzzled over this for a bit, until I brought up that maybe this report is too out of date to be useful. We also had to make minor ring heater changes to avoid PIs just after this report had been generated. Sheila trended the optical gain and saw that it did decrease by about 1% after we changed the ring heater.
So, I took a look at the report from 20250719T225835Z, and it looked very promising. The sensing function fit residual showed it was much more flat than the 6/28 report. I pushed this report next, and after burn in kappa C returned to be about 0.993. The broadband also showed this was a better calibration. We think this is improved, and we will stick with this calibration!
Open questions: why is the error still at 2% at 20 Hz? Can we improve the optical gain further?
