We updated the Low-Latency Calibration pipeline settings at around 18:50 JST on Wednesday, June 11, 2025.
config_250611:
- LL_length_1s_250611.npz for filt_invC [Fig.1] (16kHz, 1-sec length FIR filter)
- LL_length_4s_250611.npz for filt_A_TM/IM/MN [Fig.2/3] (4kHz, 4-sec length FIR filters)
[Fig.4] shows the difference between online h(t) and LL h(t). The BNS range values calculated using LL h(t) in gwistat and network summary page might be a bit higher than those based on online h(t) in the control room display and KAGRA summary page.
The output is now a 1-second-long frame every second, with a latency of about 4.36 seconds.
The shared memory partition has not been changed, so no restart was necessary to transfer data to Kashiwa.
We updated the FIR filters for Low-Latency Calibration pipeline (production) at around 12:46 JST on Friday, June 20, 2025.
config_250618:
- LL_length_1s_250618.npz for filt_invC [Fig.1] (16kHz, 1-sec length FIR filter)
- LL_length_4s_250618.npz for filt_A_TM/IM/MN [Fig.2/3] (4kHz, 4-sec length FIR filters)
reflecting the recent changes of coil drivers
The shared memory partition "hoft_cal" has not been changed, so no restart was necessary to transfer data to Kashiwa.