The comparison yesterday had very different ground motions so it bears repeating with similar GM time.
Attached is comparison from 4am Tuesday (reference traces) and 2am this morning. Below 10hz on X Y & Z there is nothing to mention. Between 10 & 100hz or something on X & Y, there are both more and less noisy bands not obviously due to the GM. The Z dof looks very comparable. On the rotational DOFs, there are a few areas of interest: RX 0.5hz; RY 0.1--0.5hz & 20hz; RZ 20--80hz. I'll repeat this tomorrow to see if these notables are repeatable.
JeffK & HughR
Here are TFs and coherences between the ground STSs near HAM2 and the HEPI floating L4Cs. These comparisons are from 3am Monday and Wednesday with pale reference traces from before Grouting Monday. The grouted data look mostly just like before grouting but there are a couple bands where things look better now: Y, 1 & 35hz. Again to be repeated.
