I ran the OPLEV charge measurements this morning. I failed to notice that the HV was off for ETMX, the QUAD_BIO medm was showing me it that it was on so I took a few bad looking measurements. On ETMY the QUAD_BIO medm was not updating when I tried to toggle the HV off and on.

For ETMY, the sign the of the charge looks to have flipped. I found a set of measurements from 09/01 that I can't find any reference in the alog of, I processed them and they looked good (good coherence, small errors...). The charge flip occured before Sept 1st but after July 31st, sometime in August. I trended the bias offset and saw it was changed from -4.9 not engaged (SWSTAT 37889) to -8.9 and engaged (SWSTAT 39937) alog91729 on August 28th. ETMYs' charge is trending towards zero on all quadrants and DOFs, it is just above +/-50V on half of the quadrants/dofs.