This is regarding the BS suspension damping using its oplev.   

I looked at the behaviour of HAM3 and BS oplev lasers over the last two hours.

The HAM3 laser (HAM3 oplev is the preferred test bed for the lasers we fix before we plug them into core optics suspensions)  has an order of magnitude lower noise in the 10 to 100Hz band.   The forest of peaks we see above 100 Hz are probably from the pier motion and not from the laser itself.

I have also looked at the 24 hr trend of the HAM3 oplev.  There are a few glitches during the time people were working in the LVEA.  I expect these will not be present when things are quiet.

Shifting the HAM3 oplev laser to BS oplev should improve the BS suspension damping.