joshua.freed@LIGO.ORG - posted 17:02, Thursday 17 October 2024 (80732)
PR2 damping contributions to DARM
J. Freed
Today we did damping loop injections on all 6 BOSEMs on the PR2 M1. This is a continuation of the work done previously for ITMX and ITMY
The gain on this instance was 750
The plots, code, and flagged frequencies are located at /ligo/home/joshua.freed/20241017/Scrpts. While the diaggui files are at /ligo/home/joshua.freed/20241017/Data
For PR2 all sensors had flags in the 8-12Hz range. Which implies couplings in that range
pr2_t3_20241017.png Shows an image of T3 during the time of injection vs the background which shows a clear picture of the possible coupling in the 8-12 Hz range
PR2HistogramofCouplings(allsensorsonM1).png Shows a histogram of all instances at which the estimated maximum ambiant noise before injections was below the estimated ambiant noise during the injections of the different sensors and their freqeuncies (A.K.A. flagged frequencies). All sensors are included. The most instances are in the 8-13Hz range with some in the 26Hz-28Hz and 46-47Hz range
GPS Start Times for Injections (end ~150 sec after start)
Background time:1413227145
T1 time: 1413227579
T2 time: 1413227855
T3 time: 1413228082
LF time: 1413228385
RT time: 1413228590
SD time: 1413228845
Background time:1413227145
T1 time: 1413227579
T2 time: 1413227855
T3 time: 1413228082
LF time: 1413228385
RT time: 1413228590
SD time: 1413228845
Images attached to this report
