This afternoon I wrote a short slider offload script to use with the alignment guardians that Sheila & Gabriele commissioned yesterday.

The script is ~userapps/release/asc/common/scripts/offload_M1_LOCK_ALIGN.py.  It moves the outputs of the M1 DRIVEALIGN matrix to the alignment sliders, taking care to check the calibration gain that comes after the sliders on some optics.  It should work for most any optic that has an M1 stage; I tried it on the PRM and SRM and it did the trick.  The syntax is, for example:

./offload_M1_LOCK_ALIGN.py -o PRM

Not sure how to best get this into the ISC_DOF guardian.  Don't forget to save those aligned slider values!

After touching up the alignment of PRX, SRY, and MICH I was able to get the DRMI to lock at 1W a few times, for a few minutes.  The gain settings were:

MICH: 30

PRCL: 22

SRCL: -400

...and FM8 (ELP70) engaged on the MICH bank rather than FM9 (ELP40), although I didn't have a chance to measure the MICH loop to see if it made a difference.  A loop measurement of PRCL is attached; the red curve is today, the black curve is a reference.