One lock loss happened.
The sensitivity curve(high frequency resolution) with O3GK is placed in
https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog24301
Bruco check is also performing.
https://gwdet.icrr.u-tokyo.ac.jp/~controls/Bruco/latest/index.html
Interesting topic ;
- There are some narrow peaks which have coherent with Voltage monitors (Fig.1.)
- Similar with O3GK, several peaks between 300 and 400 Hz will be from the PSL room. (Fig.2. )
Pick up the floor coherent issue ;
50 - 250 Hz : MICH or PRCL (not dominant, but very close)
126 - 128 Hz : Vibration around IMC chamber cause the beam jitter (IMMT1 trans QPD2)
150 Hz - : Close the CARM noise
Floor of the 150 - 195 Hz no hint
213 - 221 Hz : Some vibration near the REFL/ISS/IMMT1 trans area
223 - 225.5 Hz : Vibration in the PSL room
350 - 366 Hz : No hint
510 - 530 Hz : No hint
All memo ;
around 54 Hz : Related around BS IP
50 - 250 Hz : MICH or PRCL (not dominant, but very close)
89 Hz : Detected coherence with DC power monitors
126 - 128 Hz : Vibration around IMC chamber cause the beam jitter (IMMT1 trans QPD2)
134.7 Hz : GND detected by PEM volt monitor
140.4 Hz : GND detected by PEM volt monitor
146.484 Hz : GND detected by PEM volt monitor
150 Hz - : Close the CARM noise
153.25 Hz : GND detected by PEM volt monitor
154.88 Hz : GND detected by PEM volt monitor
156 Hz : GND detected by PEM volt monitor
195.25 Hz : GND detected by PEM volt monitor
Floor of the 150 - 195 Hz no hint
205 Hz : GND detected by PEM volt monitor
214.88 Hz : GND detected by PEM volt monitor
213 - 221 Hz : Some vibration near the REFL/ISS/IMMT1 trans area
223 - 225.5 Hz : Vibration in the PSL room
231 Hz : GND detected by PEM volt monitor
234.4 Hz : GND detected by PEM volt monitor
244 Hz : GND detected by PEM volt monitor
245.8 Hz : GND detected by PEM volt monitor
254 Hz : GND detected by PEM volt monitor
257.2 Hz : PRCL related
263.7 Hz : GND detected by PEM volt monitor
273.4 Hz : GND detected by PEM volt monitor
280.7 Hz : GND detected by PEM volt monitor
283.2 Hz : GND detected by PEM volt monitor
292.5 Hz : GND detected by PEM volt monitor
293 Hz : GND detected by PEM volt monitor
300 Hz : Sugoi
302.75 Hz : GND detected by PEM volt monitor
303.2 Hz : GND detected by PEM volt monitor
306.6 Hz : GND detected by PEM volt monitor
309.7 Hz : GND detected by PEM volt monitor
312.3 Hz : GND detected by PEM volt monitor
313 Hz : GND detected by PEM volt monitor
322.25 Hz : GND detected by PEM volt monitor
326 - 338 Hz : Vibration in the PSL room
332 Hz : GND detected by PEM volt monitor
341.8 Hz : GND detected by PEM volt monitor
350 - 366 Hz : No hint
367 Hz - Some peaks : Vibration in the PSL room
380.8 Hz : GND detected by PEM volt monitor
390.6 Hz : GND detected by PEM volt monitor
404.6 Hz : GND detected by PEM volt monitor
410 Hz : GND detected by PEM volt monitor
438 Hz : GND detected by PEM volt monitor
449 Hz : Something (ALXS-XY_DRIFT_SERVO?)
450 Hz : Sugoi
456.3 Hz : GND detected by PEM volt monitor
459 Hz : GND detected by PEM volt monitor
464 Hz : GND detected by PEM volt monitor
468 Hz : Something (ALXS-XY_DRIFT_SERVO?)
476.8 Hz : GND detected by PEM volt monitor
478.5 Hz GND detected by PEM volt monitor
484 Hz : CARM
487 Hz : CARM
497.3 Hz : GND detected by PEM volt monitor
498 Hz : CARM
500 Hz : GND detected by PEM volt monitor
507.8 Hz : GND detected by PEM volt monitor
517.6 Hz : GND detected by PEM volt monitor
527.4 Hz : GND detected by PEM volt monitor
510 - 530 Hz : No hint
534 Hz : Sound in the PSL room
537.1 Hz : GND detected by PEM volt monitor
538.3 Hz : GND detected by PEM volt monitor
546.9 Hz : GND detected by PEM volt monitor
556.6 Hz : GND detected by PEM volt monitor
558.8 Hz : GND detected by PEM volt monitor
561.3 Hz : GND detected by PEM volt monitor
566.4 Hz : GND detected by PEM volt monitor
576.1 Hz : GND detected by PEM volt monitor
579.3 Hz : GND detected by PEM volt monitor
585.0 Hz : GND detected by PEM volt monitor
595.7 Hz : GND detected by PEM volt monitor
600 Hz : Sugoi
605.5 Hz : GND detected by PEM volt monitor
606.8 Hz : GND detected by PEM volt monitor
613.2 Hz : Something (ALXS-XY_DRIFT_SERVO?)
615.2 Hz : GND detected by PEM volt monitor
619.3 Hz : GND detected by PEM volt monitor
620.2 Hz : GND detected by PEM volt monitor
624.4 Hz : CARM
625.0 Hz : GND detected by PEM volt monitor
635.7 Hz : GND detected by PEM volt monitor
640.7 Hz : GND detected by PEM volt monitor
644.5 Hz : GND detected by PEM volt monitor
645 - 670 Hz : wide peak No hint
660 Hz : Sugoi
Regarding the coherence with the PSL-room-relevant signals, what is interesting is that some ALS channels have coherence with DARM according to bruco. I do not guess the coupling direction is from ALS to DARM; maybe there would at least two independent paths like (1) from a "source X" to ALS, and (2) from the "source X" to DARM (via jitter?). So (1) is not the cause of (2), but they have coherence. We should tame the "source X" in this case.
ACC1(left) Y direction near the FFU
ACC2(center) X direction near the PMC
ACC3(right) Z direction near the new HPL
The coherence around 50 Hz was disappeared compared from O3GK, cleaning the PSL room effect?
Basically, the current amplitude of accelerometers are larger than O3GK's.
-> Maybe the calibration factor during O3GK is twice, so I modified the spectrum.
And the frequencies of larger coherence was slightly changed compared from O3GK's.
