Fig. 4

image

Illustration of the data produced by the ray-tracing method and of the three different propagation behaviors. For this example, the permittivity value is higher at depth than at the surface (Δϵ> 0). Left: trajectories of rays propagating from the location of Philae. Right: numbers of rays arriving in an angular sector of 1 deg around the orbiter location as a function of the orbiter position θ.

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