[Shu-Wei Yeh, Chia-Jui Chou]
We applied ICA to clean KAGRA strain data from 1433707218 to 1433708418 (20:00:00–20:20:00 UTC, June 11, 2025), using a cleaning duration of 1200 seconds.
The central frequencies (f_c) and corresponding cleaned frequency bands are listed below. The updated witness channels can be found in JGW-T251617-v2.
Step-by-step improvements and the total improvement are summarized in the table.
| f_c [Hz] | frequency band [Hz] | Incremental (per-band) improvement [%] | Cumulative improvement [%] |
| 120 | 115 ~ 125 Hz | 0.659 | 0.659 |
| 181 | 176 ~ 186 Hz | 0.002 | 0.662 |
| 216 | 211 ~ 221 Hz | 0.488 | 1.153 |
| 240 | 235 ~ 245 Hz | 0.041 | 1.194 |
| 300 | 295 ~ 305 Hz | 0.094 | 1.289 |
| 334 | 329 ~ 339 Hz | 0.224 | 1.516 |
| 371 | 366 ~ 376 Hz | 0.159 | 1.677 |
| 421 | 416 ~ 426 Hz | 0.003 | 1.680 |
| 480 | 475 ~ 485 Hz | 0.011 | 1.691 |
| 539 | 534 ~ 544 Hz | 0.026 | 1.717 |
| 660 | 655 ~ 665 Hz | 0.000 | 1.717 |
| 777 | 772 ~ 782 Hz | 0.001 | 1.719 |
| 839 | 834 ~ 844 Hz | 0.001 | 1.720 |
