Attached below are the results for the monthly charge measurements.

ETMX: No significant change observed, the effective bias voltage for the pitch is varying from 10-50V. Last month's measurement for the first quadrant had a huge error bar, which was not observed this time. For the Yaw, the first quadrant is sitting at 60V and the rest are between 30-40V.

ETMY: Increase in the bias voltage for the 2nd quadrant for the Pitch, which is at 85V, which is big jump from last month (57V, with a big error bar). There was a rising trend over here past few months. The other two quadrants are looking stable at 20-40V. For the Yaw, the bias voltage is stable at around 25-30V.

All the  slider values were restored after the measurement was complete and SDF differences were looked into.