Pole Position for 1972 Based on Doppler Satellite Observations.

Abstract

The position of the earth's spin axis with respect to the crust was computed on the basis of Doppler satellite observations in 1972 for the fourth consecutive year. The standard error of the determination based on five days of observations was as low as 20 cm during periods when data from 19 stations on three satellites were used in computations. In addition, computation of satellite orbits was performed for isolated time spans dating back to 1964, and changes in latitude residuals were computed for each station for the period 1964-1972; the changes were consistent with the standard error of 10-20 cm/year. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0763362

Entities

People

  • Richard J. Anderle

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Computations
  • Grids
  • Latitude
  • Observation
  • Orbits
  • Residuals
  • Satellite Orbits
  • Spacecraft
  • Spacecraft Orbits
  • Standards

Fields of Study

  • Environmental science

Readers

  • Approximation Theory.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris