Example of pulses in LAP1 (at +30 V, panel a) and LAP2 (at –30 V, panel b) current (blue). In red is shown the dynamic threshold used to define pulses, with red dots marking the pulses found by the algorithm. Panels c and d show sweep fit results for electron density and the negative of the spacecraft potential. The sign of the LAP2 current has been inverted, to show density increases as positive. The green box marks the interval zoomed into in Fig. 5.