EFI data show that PSI effectively clamps satellite potential to ~2V

Imposed electric field signature perpendicular to magnetic field of 10-30 mV/m is seen during PSI operations

Probe 4 (which is on the PSI side of the satellite) has larger current collection than probe 3 during PSI operations

Current signature shows elongation along magnetic Field

Current signature is more uniform when magnetic elevation furthest out of spin plane