Estimating Solar Proton Flux at LEO From a Geomagnetic Cutoff Model

Abstract

This report describes a method for predicting proton flux in low earth orbit (LEO) during a solar proton event (SPE). In particular, integral fluxes of >5 and >30 MeV protons are required, though it can be applied equally to other energy ranges. The method depends on a geomagnetic cutoff model, proton measurements from a geosynchronous (GEO) GOES satellite, and the geomagnetic Kp index. Its limitations and statistical accuracy are also described. The recommended cutoff model is empirical. Its results are also compared to the theoretical model of Smart and Shea.

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Document Details

Document Type
Technical Report
Publication Date
Jul 14, 2015
Accession Number
AD1045883

Entities

People

  • L. Winter
  • R. S. Selesnick
  • Sarah P. Young

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Air Force Research Laboratories
  • Altitude
  • Artificial Satellites
  • Earth Orbits
  • Government Procurement
  • Governments
  • Latitude
  • Low Earth Orbits
  • Magnetic Fields
  • Measurement
  • Orbits
  • Polar Cap
  • Spacecraft
  • Trajectories
  • Vehicles

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Solar Physics
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris