Analysis of the fine structure of distributions of solar system´s small bodies´ orbits. Near Earth asteroids

There are theories which state that a space of possible orbits in gravitational systems of planetary type is discrete, so there are systems of stable and unstable orbits. A discrete structure of gravitational systems of planetary type should be evident in distributions of orbital energy, angular momentum and some elements of orbits. The easiest way to test such theories is to look for harmonic components in frequency histograms of semi-major axes.