I ran the A2L script again today, accepted the gain diffs for the 4 test masses.
The script is still in ...userapps/isc/common/scripts/decoup/a2l_min_generic_LHO.py . Some room for improvement is that it leaves several SDF diffs (TRAMPs on the 4 quads, and settings in the PIT7 and YAW7 ADS loops), so we should add into the script to revert those.
Attached is the printout of what the script measured, as well as a screenshot of the accepted a2l gain diffs.
The attached screenshot shows that the A2L script worked well, the ASC coherences around 30 Hz are now low (the CHARD Y coherence below 15 Hz is there if things are well tuned at 25-35 Hz, this has been the case for a long time).
Otherwise, our sensitivity is still worse below 50Hz than it was in early May. The PRCL coherence may explain some of our noise in this region, but it is the same level of coherence as in early May.
