The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 1999
Filed:
Feb. 19, 1997
Pradipta Shome, Mountain Lakes, NJ (US);
Lawrence Doyle, Hazlet, NJ (US);
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
A system and a method is disclosed for on board prediction of a trajectory for satellites, which can be implemented on a computer with a limited number of bits. The system includes a compact force model that approximate the forces that the satellite encounters in an earth orbit. The compact force model includes a two body force component, a non-spherical earth gravitational force component, a solar radiation pressure component and a lunar-solar perturbation force component. An adder is coupled to the force model for combining the force components to produce an equation of motion approximating the acceleration of the satellite. An integrator is included for integrating the equation of motion approximating the acceleration of said satellite to produce an equation of motion approximating the displacement of the satellite, wherein the equation of motion approximating the displacement of the satellite is a reference trajectory.