Phase space densities (upper panels) and DEF (lower panels) are shown decomposed into individual contributions of the ambient solar wind (green), secondary (red), and photoelectrons (blue) in comparison to total simulation (black dots) and real SWA-EAS measurements (grey crosses) for both run A (left) and run B (right). Simulated data are over-plotted by the model (dotted line) for ambient background Maxwellian plasma. The simulated spacecraft potential (dashed black line) and the spacecraft potential as measured by RPW is shown for comparison (vertical dashed grey line). The shaded grey area shows the possible location of the real effective potential of the SWA-EAS detector.