A METHOD FOR IMPROVING THE ORBITS OF ARTIFICIAL EARTH SATELLITES USING OBSERVATIONS WHEN THE TIME IS ONLY APPROXIMATELY KNOWN

Abstract

A method is given for improving the orbital elements of artificial satellites when the observation times are only approximately known. Corresponding conditional equations are derived, one of which is independent of time error. It is shown that some orbital elements can be determined from the equations which are independent of time errors, and the optimum conditio s for determining these elements are analyzed. Conditional equations are given for corrections in the absolute coordinates of observational stations, and these equations are analyzed. An example is given using this method for improving the orbital elements of artificial satellites. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 07, 1961
Accession Number
AD0262609

Entities

People

  • D.k. Kulikov
  • Yu. V. Batrakov

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Equations
  • Equations Of Motion
  • Mathematics
  • Observation
  • Orbital Elements
  • Space Systems

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Space Exploration and Orbital Mechanics.
  • Statistical inference.

Technology Areas

  • Space
  • Space - Orbital Debris