Accession Number : AD0781852

Title :   Mathematical Formulation of the Variational Equations for the Determination of the Earth's Gravity Field.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL WEAPONS LAB DAHLGREN VA

Personal Author(s) : Perry,James C.

Report Date : MAY 1974

Pagination or Media Count : 28

Abstract : Expressions for the coefficients and forcing term are derived for the variational equations to be used in a new computer program being developed to determine the earth's gravity field (Program TERRA). Also a brief idea of the role of variational equations is sketched. (Author)

Descriptors :   *Orbits, *Gravity, Partial differential equations, Matrices(Mathematics), Computer programming, Mathematical prediction

Subject Categories : Geodesy
      Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE