Looked at Coherence between the Cartesian DOFs of the L4C [X RX RY & Z] and many ASC & LSC channels along the REFL_A & B path.  Looked during the 30 or so minute long 80Mpsec lock last night [11:03 utc 7 Dec]

1) Essentially everything is coherent with all DOFs at the useism but the X much less so than all the verticals.

2) Outside of the secondary microseism frequencies, ASC_DC1_P has the most presence seen in all L4C DOFs from <2hz thru 8+hz.

3) PRC2_P & Y show up in the vertical L4C DOFs from 6 & 10hz.

4) There is a notable lines for POP_A_RF9_I/L4C_Z at 1.47hz.

** Likely more of interest probably already seen/know to many.

Attached are the DDT Coherence plots: The first has the X DOF standouts at the bottom and the Z DOFs (essentially all) in the upper two plots.

The second attachment has the TILT coherences in four panels; these basically show the same as the Z (maybe makes sense) with the Z coherence showing up in a few more channels than the Tilts, for example DC2.