I ran a calibration sweep this afternoon, starting with the broadband:
/ligo/groups/cal/H1/measurements/PCALY2DARM_BB/PCALY2DARM_BB_20230830T190736Z.xml
Simulines:
2023-08-30 19:36:43,647 | INFO | File written out to: /ligo/groups/cal/H1/measurements/DARMOLG_SS/DARMOLG_SS_20230830T191430Z.hdf5
2023-08-30 19:36:43,663 | INFO | File written out to: /ligo/groups/cal/H1/measurements/PCALY2DARM_SS/PCALY2DARM_SS_20230830T191430Z.hdf5
2023-08-30 19:36:43,674 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L1_SS/SUSETMX_L1_SS_20230830T191430Z.hdf5
2023-08-30 19:36:43,684 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L2_SS/SUSETMX_L2_SS_20230830T191430Z.hdf5
2023-08-30 19:36:43,696 | INFO | File written out to: /ligo/groups/cal/H1/measurements/SUSETMX_L3_SS/SUSETMX_L3_SS_20230830T191430Z.hdf5
GPS start: 1377458086.806734
GPS stop: 1377459422.017018
This is the first calibration measurement with the new DARM boost filter (alog 72565)
... however, we realized too late that the IFO had not yet thermalized during this measurement. As such, we're not confident that this measurement will convey a representative sensing function suitable for an update to the calibration pipeline parameters. So, we will likely throw this *sensing* measurement in the "not yet thermalized" bin. It is still a totally fine actuation measurement. For a more thermalized measurement in the same IFO configuration a few hours later -- see LHO:72573. Attached shows a trend of the TDCFs (specifically the relative optical gain, \kappa_C, and cavity pole frequency, f_CC -- second and third rows) vs. the arm cavity power (bottom row). The first dashed vertical line is the start of this measurement's time. The second dashed vertical line is the start of the LHO:72573 measurement. The arm cavity power is much more like the previous stretch's thermalized arm power at the second vertical dashed line, and less "on the exponential rise." One can see this *less* so in the \kappa_C and f_CC trend, but we feel it better to be safe than sorry and use the LHO:72573 measurement 2.5 hours later.
