On Monday I used some templates that Sheila pointed me toward to get some data on HAM ISI coupling to DARM, to see if any of HAMs 2,3 and 6 are close to be a limiting noise anywhere. I did the injections using the templates Sheila gave me, I then used a script from Arnaud based on some of the pem scripts used to estimate couplings. For each table I got excitations in the vertical(Z), beamline (X or Y) and pitch (RY or RX) dofs. This was a first attempt, I think I will probably want to try doing some of this measurement again, but I'll wait to talk to Arnaud a bit about the data.

For each attached image, top subplot shows the quiet ISI dof in black, the injection is red. Bottom plot shows DARM and the estimated couplings for the dof.

None of these are really stand out to me, but maybe my injection could use some tuning.

Templates for each measurement are in /ligo/gitcommon/NoiseBudget/aligoNB/aligoNB/H1/couplings/ISI.