Attached are plots of coherence between DARM and other channels during last night's lock.

In the 100-200Hz region, there is some coherence with the other LSC DOFs, and the OMC ASC control signals (OMC-ASC_{ANG, POS}_OUT_DQ).

Above 300Hz there is coherence with the input intensity noise.

In the 20-40Hz band there is some coherence with the OMC ASC.

Below 10Hz there is a lot of alignment noise.

Question for DetChar people: does this agree with other coherence tools?