Today a lot of glitches are visible in SSFS_Corr.

Fig. 1 is a trend of a typical lock in dark fringe, SSFS boost engaged.

Fig. 2 is the shape of the glitch: it lasts about one cycle of the main frequency present in SSFS_Corr (150 Hz). We can see that the glitch is not present in the correction sent to MC mirror actuators.

Fig. 3 is the spectrum of SSFS correction and error during a glitch, compared to the spectrum of clean data a few seconds before.