I ran BruCo on one hour of data from last night. The report is available here:

https://ldas-jobs.ligo.caltech.edu/~gabriele.vajente/bruco_1137640217/

At low frequency, SRCL and DHARD_P are the largest contributions. SRCL is still a factor of few below the measured noise, while DHARD is very close around 14 Hz.

There is coherence with magnetometers (still far from the measured noise)

• EY_MAY_EBAY_SEIRACK at many lines below 100 Hz,
• EY_MAG_EBAY_SUSRACK_Z kind of broadband at  high frequency

No significant broadband coherence in the mistery noise region.