Sorry I couldn't find the realtime Japan lightning report which was written in English from the web
In the daily summary page, this lightning is crealy seen.
(UTC 19:00 = JST 4:00)
however, yaw motion of BS or ETM were not observed by OpLevs.
I'm developing an analysis for lightning events.
These are an example of a single pulse (9/4 4am, 16kHz sampling):
1. (Left) Raw time-series of Bx, By, Bz, and |B|. (Right) Baseline subtructed time-series of magnetic field for length, tangentan, and z direction for the mirror.
2. ASD for the lightning pulse and background
3. (Left) Spectrogram and (Right) Q-transform for the |B|.
4. Baseline subtructed time-series of OpLev. (in this case, not excited)
The same analysis for the 8/5 event (2kHz samoling).
In this time, OpLev detected the mirror motion
