Results of dust trajectory calculations dust around the Sun with initial orbits with varying inclination (a) and eccentricities (b–d). In (b), the starting point is the periapse, in (c) it is at θ = 90° and at θ = −90° in (d). The background shows the initial radial acceleration averaged over one gyroperiod by using the guiding center approximation. Both the x- and y-axis show values of the initial orbit. The black line shows the Alfvén radius. The points show the results of the numerical simulations with full equation of motion, Eq. (2). Blue means that the particle was trapped, red means that it was ejected, orange means that it hits the Sun, and black means that the result was ambiguous. Since the eccentricity is 0 in (a) and (b), the periapse is equal to the initial distance from the Sun.