I calculated circuit noise from the measurement yesterday.
Attched graphs show the results of PRM and ITMX.

We measured two kinds of signals of each segments of QPDsyesterday:
One is QPD dark noise with whitening filter, which relatively enhanced the noise before whitening filters and represents QPD dark noise level.
The other is QPD dark noise without whitening filter, which basically limits AA and ADC noise level.

Then, I compaired sum of these results with mcross, which is beam position insensitive signals calculated from signals of each segment (see JGW-G2011666 for detail).
As you can see, our previous measurement results can be almost explained from these two noises.
So, our calculated QPD noise looks reasonable.

I'm not sure our measured ADC noise level was contaminated by gliches we reported yesterday but measured value was roghly 1e-2 counts/rtHz (Does someone knows theoretical vales?).

I will do the same thing for BS on Thursday.