The proper orbital elements or proper elements of an orbit are constants of motion of an object in space that remain practically unchanged over an astronomically
Orbital elements are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are considered in two-body systems
prediction · Orbital info · Proper elements · Observational info Ceres at the JPL Small-Body Database Close approach · Discovery · Ephemeris · Orbit viewer ·
region of the inner main asteroid belt. In terms of proper orbital elements, asteroids in this complex orbit the Sun at semi-major axes approximately between
prediction · Orbital info · Proper elements · Observational info 3 Juno at the JPL Small-Body Database Close approach · Discovery · Ephemeris · Orbit viewer ·
perturbations, so proper orbital elements which are averaged over a period of time are preferably used. The proper orbital elements of the irregular moons
the diagram, their proper orbital elements lie in the approximate ranges At the present epoch, the range of osculating orbital elements of the members (by
of years, Nysa's orbital elements vary and average out with a proper eccentricity of 0.17 and a proper inclination of 3.1°. Nysa orbits within a densely
orbit can be described by a set of mean elements with secular and periodic terms. In the case of minor planets, a system of proper orbital elements has
2023-08-13). Retrieved 18 September 2023. "AstDyS-2 Metis Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved