# Functions
EllipticAscending computes time and distance of passage through the ascending node of a body in an elliptical orbit.
EllipticDescending computes time and distance of passage through the descending node of a body in an elliptical orbit.
ParabolicAscending computes time and distance of passage through the ascending node of a body in a parabolic orbit.
ParabolicDescending computes time and distance of passage through the descending node of a body in a parabolic orbit.