๐ฐ๏ธ Space Research Orbit: Kepler Mechanics Lab
A research probe follows real two-body Newtonian gravity (RK4-integrated):
a = -μยทr / |r|³. Every readout โ semi-major axis, eccentricity, apoapsis/periapsis, orbital period โ is derived live from the probe's actual energy and angular momentum, not decoration.