Accession Number : AD0697904

Title :   NUMERICAL VERIFICATION OF EXPRESSIONS FOR ZONAL HARMONIC ORBITAL PERTURBATIONS.

Descriptive Note : Technical memo,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Jenkins,Robert E. ; Lubowe,Anthony G.

Report Date : AUG 1969

Pagination or Media Count : 41

Abstract : Expressions are given for the first order node-to-node perturbations in the orbital elements of a satellite arising from an arbitrary zonal harmonic of the geopotential. Comparison with a double precision numerical integration is made for an intermediate altitude satellite, TELSTAR I. (Second order perturbations due to the second harmonic, derived elsewhere, are included, as well as the first order perturbations due to the zonals through the fourteenth order). Discrepancies in semimajor axis after one period are of the order of 0.1 mm. Discrepancies in timing are of the order of 0.03 ms. (Author)

Descriptors :   (*ORBITS, PERTURBATION THEORY), GRAVITY, POTENTIAL THEORY, COMMUNICATION SATELLITES(ACTIVE), NUMERICAL ANALYSIS

Subject Categories : Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE