To see if we have anything to gain with our low ugf loops.

1st plot is the ASD of the HAM 2 & 3 X Y & Z with our 2Hz ugf evident.  The next 6 plots use the HAM2 SENSCOR FIR IN1 as a calibrated ground motion for the TF A channel.  The B channels are the HAM 2 & 3 ISO X Y & Z.

In general, coherence is greatest where it makes sense X to X Y to Y etc.  The greatest level of coherence shows mostly around 5 hz at about 0.5. 

The standout is the HAM3 Y to Y coherence which shows stronger hitting 0.7 and is broader around 4 to 5 hz.  Maybe not that important for IMC motion but still..

The final attachment is a comparison of the LHO vs LLO isolation filter.  Interesting comparison since LLO is not doing any inertial isoation with the L4C.  They are quite different.