Accession Number : AD0474137


Title :   FILTERING ASPECTS OF ORBIT DETERMINATION


Descriptive Note : Technical documentary rept.


Corporate Author : AEROSPACE CORP EL SEGUNDO CA EL SEGUNDO TECHNICAL OPERATIONS


Personal Author(s) : Mercer, R J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/474137.pdf


Report Date : Oct 1965


Pagination or Media Count : 28


Abstract : An exciting prospect for modern filtering theory lies in the field of orbital navigation, but as of today the most impressive results in orbit determination have been obtained by classical methods of parameter estimation. Some current experience and problems are described and their implications for modern filtering theory are discussed. Two techniques, found effective in the classical process, are presented in the context of recursive estimation. Four illustrative plots are included.


Descriptors :   *ORBITS , DRAG , EPHEMERIDES , ERRORS , FUNCTIONS(MATHEMATICS) , GEODESICS , GRAVITY , MATHEMATICAL PREDICTION , MATRICES(MATHEMATICS) , NUMERICAL ANALYSIS , POSITION FINDING , RECURSIVE FUNCTIONS , RESONANCE , SPACE NAVIGATION , STATISTICAL ANALYSIS , VELOCITY


Subject Categories : Spacecraft Trajectories and Reentry


Distribution Statement : APPROVED FOR PUBLIC RELEASE