Daniel, Stefan

We measured the ISS out of loop RIN using a straight shot beam to the OMC at 25W  (35.9mA DCPD_SUM). After choosing some better misaligned positions, we got about 1e-8/rtHz between 150Hz and 800Hz (see attached plot).

The first attempt was limited by scatter noise from misaligned optics. The following new misalignment TEST offsets cut down a lot on that scatter noise:

PRM_P    520 unchanged
PRM_Y    -3200  (was -6200, +3000)  - this one was not updated yet, because nominally the PRM should dump the beam at a beam bump on top of HAM1.
SRM_P    707
SRM_Y    -1910    (was 1090, -3000)
ITMY P    40.3
ITMY Y    53.1       (was -46.9, +100)

None of those new offsets are in SDF yet.