A BruCo scan of 500 seconds with a sensitivty around 93 Mpc (45197) can be found at the link below

https://ldas-jobs.ligo.caltech.edu/~gabriele.vajente/bruco_1225937545/

• below 15 Hz the sensitivity is completely limited by ASC (CHARD and CSOFT pitch) (fig. 1 and 2)
• between 15 Hz and 25 Hz there is significant coherence with REFL_A_RIN and with INP1_Y and PRC2_Y (fig. 3, 4 and 5). Slightly lower coherence with INP1_P.
• this coherence between 15 and 25 Hz  is also seen in some IMC signals, for example IM4_TRANS_YAW_OUT and the second loop QPD, so this is likely to be input beam jitter
• between 20 and 40 Hz DHARD_Y shows coherence, although not very high (fig. 6)
• At 500-600 Hz there is coherence with PSL table accelerometers (fig. 7)