Currently field lines traced through the PFSS solution reach slightly outside the boundary, since they use finite difference steps. These should be clipped so they start at exactly 1 solar radius, and finish at exactly the source surface. This involves interpolating a point between the last two points of the field line.
Currently field lines traced through the PFSS solution reach slightly outside the boundary, since they use finite difference steps. These should be clipped so they start at exactly 1 solar radius, and finish at exactly the source surface. This involves interpolating a point between the last two points of the field line.