Figure 1. In the last few hours there was two glitches where the B1p power increased by a factor 2 for less than 1 second.
Figure 2 shows the trend over the last two days, and there is at least two more glitches like that. For example on June 25 just before midnight.
The glitches are due to events on WE marionette, involving the actuation on TX and TZ. A step is visible on both the correction; it induces a temporary misalignment, well visible on the optical levers. One can easily find a few of them going through the recent data.
There could be one vertical actuator which changes slightly its gain: the actuators are disposed in X configuration, which means that all are equally involved in the control of TX and TZ. The effect could be amplified by the fact that, after the mirror replacement, the correction needed to align TX remained a bit high (4 V). It can easily zeroed by means of the motors. It would be worth to do it and see if the glitches are mitigated.
In case they are not, it would be more difficult to exclude something more worrying, like a mechanical glitch, but I see it quite irrealistic.
