Accession Number:

AD0754738

Title:

Higher Order Theory for Long-Term Behavior of Earth and Lunar Orbiters

Descriptive Note:

Final rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC OPERATIONS RESEARCH BRANCH

Personal Author(s):

Report Date:

1972-12-29

Pagination or Media Count:

100.0

Abstract:

A semianalytical method capable of analyzing both lunar and earth orbiters is presented. Primary attention is focused on predicting the evolution of the orbit as affected by third-body perturbations and those of the rotating primary. The singly averaged literal equations of motion are expanded by machine to a high order in the parallax factor and the mean motion ratio. These equations are numerically integrated to yield the orbital evolution and stability for a wide range of initial conditions. In addition, a purely analytical method is introduced to yield the orbital lifetimes for a special class of orbits.

Subject Categories:

  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE