Experimental tests of 'natural control' by tracking-data of the Helios spacecraft and comets

The principle of natural control represents the finite velocity of energy transfer in the laws of motion by a special term which can be treated by perturbation calculus. The principle is an alternative to the theory of relativity and states that three dimensional space is an indeterminate time integral of all vectors between all bodies moving relative to one another. The principle can be applied to eccentric orbits and is tested here by the examination of data on the tracking of the eccentric orbits of comets and the Helios spacecraft.