unit_vector

Astronomy.orbits3D.unit_vector(long_asc_node, inclination, longitude)

Cartesian components of a unit vector.

The Cartesian components of a unit vector which lies at a given longitude along an inclined plane measured from the line of intersection of the planes which is defined by the longitude of the ascending node measured from the X-axis in the xy plane.

:param long_asc_node : longitude of ascending node from X-axis in XY-plane :type long_asc_node : float (degrees)

:param inclination : tilt of the inclined plane’s axis from Z-axis :type inclination : float (degrees)

:param longitude : longitude measured on inclined plane from intersection :type longitude : float (degrees)