Recovery of 5 Degrees Mean Gravity Anomalies in Local Areas from ATS-6/GEOS-3 Satellite to Satellite Range-Rate Observations.

Abstract

The recovery of 5 deg equal area mean anomalies is investigated from ATS-6/GEOS-3 SST real range-rate data using the least squares collocation method. The observational errors can be very satisfactorily filtered out by using piecewise continuous cubic splines (with continuous first and second derivatives) to fit the range-rate data in the least squares sense. The accelerations are obtained by analytical differentiation of the fitted spline. The accelerations are obtained optimally, matching the smoothness characteristics expected at GEOS-3 altitudes, if the nodes of the spline, where adjacent cubic polynomials meet, are kept every 60 seconds to fit range-rate observations at 10 seconds interval.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1977
Accession Number
ADA053233

Entities

People

  • D. P. Hajela

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Altitude
  • Artificial Satellites
  • Contracts
  • Crystal Structure
  • Equations
  • Equations Of Motion
  • Flight
  • Gravitational Fields
  • Gravity
  • Gravity Anomalies
  • Orbital Elements
  • Solar Radiation
  • Space Flight
  • Statistics
  • United States

Readers

  • Approximation Theory.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris