Here the links to Bruco tables, up to 500Hz:
- full: https://scientists.virgo-gw.eu/DataAnalysis/bruco//2018-05-08/Hrec_hoft_20000Hz_1209847080/
- only safe channels (ENV*, *Clock*, SBE*, BsX*): https://scientists.virgo-gw.eu/DataAnalysis/bruco//2018-05-08/Hrec_hoft_20000Hz_1209847080_ENV/
Some high-lights about coherences with control signals:
- 10-20 Hz dominates LSC_B1s2_DC (Figure 1)
- 30-70 Hz LSC_MICH (Figure 2)
- PRCL is broadband, but seems not dominant (Figure 3)
- SSFS is mainly at 156 Hz and probably 150Hz and other 50Hz odd harmonics (Figure 4)
- broad peaks (192, 208, 231-240, 276 Hz which correspond to old baptized "scattered light" structures) have some coherence (around 0.3) with signals SDB1_B5_QD1 and Sc_NE_MAR_TZ_CORR (Figure 5)
- above 300Hz Sc_NE_MAR_TZ_CORR is the winner (Figure 6)
Some high-lights about ENV and other safe channels:
- no broadband contribution,
- but few narrow peaks are coherent with CEB hall sound and vibration sensors: 333.5Hz (seems NEW), 393Hz (also NEW) and 463 Hz (this should be the big turbo)
- 55.7 and 57.6 Hz peaks are coherent with 10MHz clocks (SIB2, SPRB)
- BsX* have no coherence except peaks (also in SSFS) at 156 Hz, 401Hz (IB turbo pump?) and 405Hz
Figure 7 shows the overall projection, Figure 8 shows the projection by families, Figure 9 is the same but with linear x scale.
This is the list of most coherent channel at most prominent peaks:
% freq(Hz) ASD maxCOHE channel
f= 55.7 (ASD= 1.3e-22): 0.63 V1:SIB2_Clock_10MHz_mag
f= 57.6 (ASD= 2.1e-22): 0.66 V1:SPRB_Clock_10MHz_mag
f=157.2 (ASD= 6.9e-23): 0.75 V1:BsX_GLB05
f=256.8 (ASD= 4.2e-23): 0.11 V1:ENV_DT_W_FLANGE_ACC_Z
f=286.1 (ASD= 6.6e-23): 0.17 V1:ENV_SR_ACC_Z
f=288.6 (ASD= 6.6e-23): 0.18 V1:ENV_BS_ACC_Z
f=333.5 (ASD= 1.7e-22): 0.25 V1:ENV_NI_CT_ACC_Z
f=344.7 (ASD= 1.1e-22): 0.64 V1:BsX_QF_DC
f=383.8 (ASD= 6.1e-23): 0.16 V1:ENV_DT_ACC_Z
f=393.6 (ASD= 2.1e-22): 0.86 V1:ENV_CEB_MIC
f=401.4 (ASD= 4.2e-22): 0.96 V1:BsX_PZT_UVC
f=405.8 (ASD= 4.3e-23): 0.34 V1:BsX_QF_h
f=432.6 (ASD= 2.3e-23): 0.29 V1:ENV_SQZ_PIPE_ACC_Y
f=447.3 (ASD= 1.2e-20): 0.26 V1:SBE_EIB_sine
f=462.9 (ASD= 7e-24): 0.86 V1:ENV_SQZ_ACC_Y
