Accession Number:

ADA038463

Title:

Development of Finite Element Models for the Earth's Gravity Field. Phase I. Macro Gravity Model for Satellite Orbit Integration.

Descriptive Note:

Contract rept.,

Corporate Author:

VIRGINIA UNIV CHARLOTTESVILLE DEPT OF ENGINEERING SCIENCE AND SYSTEMS

Personal Author(s):

Report Date:

1977-02-01

Pagination or Media Count:

31.0

Abstract:

As alternatives to lengthy globally valid series representations of the geopotential, piecewise modeling for the gravity field is investigated. A degree 23 spherical harmonic representation is replaced by 1500 local gravity functions within the spherical shell from 1 to 1.2 earth radii. Worst case acceleration errors enter in the 7th significant digit, computational speed is improved by an order of magnitude. Author

Subject Categories:

  • Geodesy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE