Accession Number : AD0736148

Title :   Attitude Motion in an Eccentric Orbit.

Descriptive Note : Technical memo.,

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

Personal Author(s) : Anand,D. K. ; Yuhasz,R. S. ; Whisnant,J. M.

Report Date : DEC 1970

Pagination or Media Count : 73

Abstract : Both analytical and numerical techniques are used to study the oscillations and regions of stability of a gravity-gradient satellite in an eccentric orbit. A stroboscopic study of the results of a digital simulation of the equations of attitude motion yields stable regions that are considerably larger than those reported previously. The analytic study is conducted via a perturbational technique, and the results show good agreement with the numerical results in magnitude but not in phase. (Author)

Descriptors :   (*SATELLITE ATTITUDE, NUMERICAL ANALYSIS), (*SCIENTIFIC SATELLITES, *ORBITS), ELLIPTICAL ORBIT TRAJECTORIES, OSCILLATION, DAMPING, STABILITY, EQUATIONS OF MOTION

Subject Categories : Unmanned Spacecraft
      Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE