Comparison of Ax8 and Ax9 Trapped Environment Models for Various Orbits

Abstract

This report compares the Ax8 mean environment with the Ax9 95 percent confidence environment for a range of potential mission orbits. It is shown that a commonly held rule of thumb that Ax9 (95 percent) is roughly 2x the Ax8 mean level is not valid except for GEO behind a typical range of spacecraft shielding. All other missions should carefully evaluate the environment from the Ax9 model instead of relying on an arbitrary scaling from past experiences.

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Document Details

Document Type
Technical Report
Publication Date
Oct 07, 2021
Accession Number
AD1195358

Entities

People

  • Betty P. Kwan
  • Timothy B Guild

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Altitude
  • Apogees
  • Circular Orbits
  • Corporations
  • Earth Orbits
  • Engineering
  • Environment
  • Low Altitude
  • Orbits
  • Physical Sciences
  • Shielding
  • Solar Cycle
  • Space Force
  • Space Sciences
  • Space Systems
  • Thickness
  • United States

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space