Fig. 11From: The swarm Langmuir probe ion drift, density and effective mass (SLIDEM) productExample of the difference of floating potential estimates between Langmuir probes 1 and 2 (blue) as a function of QD_Mlat, for nightside (ascending, top) and dayside orbits (descending, bottom). The red plot shows the theoretical inter-probe potential variation which may be expected as a result of electro-magnetic forces created by the spacecraft’s motionBack to article page