Looking at the data after the ITF was relocked in Low Noise 3 aligned (attached figure), we can see that there is an offset between the B5 QD2 signal (in particular in H) and the SDB1 bench aligned position with the dither control. I already added an horizontal offset of -170 um in the SDB1_Quadrants configuration file, but the configuration needs to be reloaded to apply it. To be done when the interferometer will be DOWN.