SPACE TRACK. SPACE VEHICLE EPHEMERIS AND DIFFERENTIAL CORRECTION PROGRAM UNIFIED THEORY
PHILCO NEWPORT BEACH CA AERONUTRONIC DIV
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An outline is given on the development of a differential correction theory for lunar and space probes. To overcome the singularities inherent in differential processes with conventional two-body descriptions of the path, as the eccentricity passes through unity in either the parabolic or rectilinear sense, a unified formulation of the two-body equations was developed. The differential correction procedure over is based upon an ephemeris, integrated in Encke form by special perturbations, and upon differential expressions derived from the unified two-body equations. The report includes experimentation with simulated range, range-rate, azimuth, altitude, right ascension andor declination data to evaluate the performance of the resulting IBM 709 program.
- Celestial Mechanics
- Unmanned Spacecraft