A point of a Ground track to draw: a TrackPoint that also says whether the Satellite is Sunlit there, so a map can draw the stretch it spends in the Earth's shadow fainter.
Kilometres above the WGS84 ellipsoid.
Degrees north.
Degrees east, in [-180, 180].
Whether the Satellite is in the Sun's light at this instant rather than in the Earth's shadow.
A point of a Ground track to draw: a TrackPoint that also says whether the Satellite is Sunlit there, so a map can draw the stretch it spends in the Earth's shadow fainter.