Nodal precession is the precession of an orbital plane around the rotation axis of an astronomical body such as Earth. This precession is due to the
Semi-Minor Axis - Ellipse
In geometry, the semi-minor axis (also semiminor axis) is a line segment associated with most conic sections (that is, with ellipses and hyperbolas) that
Flattening - 1st variant
Flattening is a measure of the compression of a circle or sphere along a diameter to form an ellipse or an ellipsoid of revolution (spheroid) respectively.
Radius from true anomaly
In celestial mechanics, true anomaly is an angular parameter that defines the position of a body moving along a Keplerian orbit. It is the angle between