Reports until 08:08, Monday 04 December 2023
you-ru.lee@LIGO.ORG -
posted 08:08, Monday 04 December 2023 (74572)
Data Quality Shift Report 2023-11-27 to 2023-12-03
Full DQ report here
Summary
- BNS range: Initially around 155 Mpc. Decreasing significantly on Wednesday(23/11/30) to 140 Mpc, and lock loss totally on Friday(23/12/01).
- Fscan-observing: Line counts are from 600 to 100, this number has been increasing since first day(23/11/27), and hit the lowest point on Saturday(23/12/02).
- Hveto: The most common winners
- H1:LSC-REFL_SERVO_ERR_OUT_DQ (3 times)
- H1:PEM-EX_EFM_BSC9_ETMX_Y_OUT_DQ (3 times)
- PyCBC: Four new SNR >10 in Live Short, and two of them SNR >10 in Live Medium.
- The highest SNR happened on Sunday 02:00 UTC, which is 14.59, the GPS time is 1385604238.646.
- Since Wednesday (23/11/29), the lock loss time started to noticeably increase due to the Micro-Seismic Ground Motion, as a result, on Friday the H1 faced serious whole-day lock loss; and from Saturday, the strong Earthquake propagated from Philippines started to caused another long-time lock loss.
- There are noises appeared at 500z and 1000Hz in h(t) whole day usually, which should be "Violin mode" of wires because of frequent lock loss these days, it appeared and seems to be in the whole short observable interval.