DESCRIPTIONS OF THE GEOMAGNETIC FIELD.

Abstract

This report is concerned with the geomagnetic field from a control specialist's point of view. It contains a brief historical background of the subject and an explanation of the field's significance to control engineers. The gross features of the field are described as determined from surface and satellite measurements, and as currently understood by geophysicists. Spherical harmonic expansion, simple dipole, titled dipole, translated dipole, and quadrupole field models are presented. An error analysis showing the magnitude and directional differences between each of the four approximate models and the more exact Hendricks and Cain spherical harmonic expansion model for 1967.0 is included for evaluation of model adequacy and accuracy. Notable field abnormalities are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1967
Accession Number
AD0810608

Entities

People

  • R. K. C. Luke

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abnormalities
  • Accuracy
  • Artificial Satellites
  • Control Systems Engineering
  • Directional
  • Engineering
  • Engineers
  • Error Analysis
  • Errors
  • Measurement
  • Test And Evaluation

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Systems Analysis and Design
  • Theoretical Analysis.

Technology Areas

  • Space