[Lucia, Terrence, Keiko]

ASC loops:
In the FPMI configuration (without dithering at the final state of the LSC guardian), MICH Y and MICH P loops were closed. See the attached file for the servo settings. BS guardian was set to FLOAT during the measurement. Both P and Y loops seemed work as we changed the offset the operating points changed, however, from the attached measurement of the error signals, the P loop did not show any suppression in the low frequencies. It maybe too low gain.

Also, the loops did not improve anything for the AS DC (PDA1) light. We need more understandings (sensing matrix measurement!).

Sensing matrix script:
A simple version of automatic sensmat script (/users/Commissioning/scripts/asc/asc_sensmat_measure_bs_yaw.py) was tested. It send the WFS/TMS signals to lockin demods and take the average values so that we don't have to open any diaggui. We repeated the measurement for four times (results are in /users/Commissioning/data/ASC/2019/1126/sensmat_data.txt) and also we saved the diaggui data (/users/Commissioning/data/1126/sensors.xml) to compare to confirm that we can believe the script. Comparison will be done tomorrow.

As some quick observation reports from this measurement, see the last screenshot. The sensors AS WFS1 17Q, AS WFS1 28Q, AS WFS2 17Q, AS WFS2 28Q, TMSX QPD1, TMSX QPD2, TMSY QPD1, TMSY QPD2 are sent to DEMODS1-8, respectively. TMS signals (DEMODs 5-8 in the figure) did not respond to the BS excitation, which were reasonable. Also, AS WFS2 28Q signals did not appear very much, which is also good as the sensor is known not working.