Glitch
Glitches
The modes that are excited by the glitches are:
3917.5 Hz
5584.0 Hz
9831, 9850, 9889 Hz
According to Michele, the 5584 Hz line is an internal mode of the WI mirror.
There is no clear and visible effect on the violin modes around 300 Hz.
Nothing is visible on the RM coil current monitors.
In conclusion it seems that the glitches are caused by some event happening at the WI suspension, likely at the level of the mirror itself.
recently glued magnets? In particular at the WI, the spacers were reattached with water-glass. We might have to wait some time until the process has settled in a final state.