POLAR MOTION DETERMINATIONS BY U.S. NAVY DOPPLER SATELLITE OBSERVATIONS

Abstract

The irregular motion of the earth's axis of rotation, know as Chandler Wobble, was determined on the basis of Doppler observations of Navy Navigation Satellites. Measurement precisions of about 0.5 meters have been obtained for averaging times of six days. Agreement with astronomical determinations is better than one meter over the last two years. The discrepancies are no longer than differences between results for different groups of observatories as reported by the Bureau International de L'Heure and the International Polar Motion Service.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1970
Accession Number
AD0712058

Entities

People

  • R. J. Anderle

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Computers
  • Coordinate Systems
  • Geography
  • Jet Propulsion
  • Measurement
  • Navigation
  • Navigation Satellites
  • Observation
  • Observatories
  • Physics
  • Physics Laboratories
  • Rotation
  • Satellite Orbits
  • Space Systems
  • Spacecraft
  • Standards

Readers

  • Astronomy and Astrophysics.
  • Climatology
  • Control Systems Engineering.

Technology Areas

  • Space
  • Space - Orbital Debris