Simulation and Calculation of the APEX Attitude

Abstract

A simulation of the APEX attitude is carried out for purposes of development and testing of attitude computation algorithms and for assessment of the accuracy of post-flight attitude determination. It is found that reasonably tractable algorithms give adequate accuracy for determination of attitude control in the vehicle. Sun normal angle will be known to a high precision during sunlit operations. The roll axis in sunlight and the three axes during eclipse will be somewhat less precise, depending mainly on the degree of magnetic contamination. However, it is estimated that these quantities will be of sufficient accuracy as well.

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Document Details

Document Type
Technical Report
Publication Date
Jul 29, 1992
Accession Number
ADA258716

Entities

People

  • W. J. Mcneil

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Artificial Satellites
  • Attitude Control Systems
  • Calibration
  • Computations
  • Control Systems
  • Data Processing
  • Equations
  • Equations Of Motion
  • Kalman Filters
  • Magnetic Fields
  • Magnetometers
  • Measurement
  • Simulations
  • Solar Panels
  • Spacecraft

Readers

  • Inertial Navigation Systems.
  • Space Exploration and Orbital Mechanics.