Energetic Proton Maps for the South Atlantic Anomaly

Abstract

A new set of flux intensity maps for energetic protons in the South Atlantic Anomaly (SAA) region is presented for the epoch 2000-2006 based on data from the Compact Environmental Anomaly Sensor (CEASE) flown onboard the Tri-Service Experiment-S (TSX-5) satellite in a 410 km x 1710 km, 69 degree inclination orbit. Maps for >23 MeV, >38 MeV, >66 MeV , and >94 MeV protons have ben constructed and boundary contours for 1/2 maximum, 1/10 maximum, and 3 times the background standard deviation derived. Estimates are given of the integral energy spectra as a function of altitude from 400 km to 1650 km, an interval spanning the range where the controlling factor in the dynamics changes from the neutral density to the global magnetic field. The position of the maximum flux point is compared to that determined from earlier measurements in the 1994-1996 epoch and found to be consistent with the well-known westward drift.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA485155

Entities

People

  • Bronislaw K. Dichter
  • Dan Madden
  • Donald H. Brautigam
  • G. P. Ginet

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Altitude
  • Artificial Satellites
  • Boundaries
  • Detectors
  • Earth Orbits
  • Integrals
  • Intensity
  • Low Earth Orbits
  • Magnetic Fields
  • Measurement
  • Radiation Effects
  • Space Systems
  • Spacecraft
  • Standards
  • Vehicles

Fields of Study

  • Physics

Readers

  • Geodesy
  • Polar and Arctic Studies
  • Solar Physics

Technology Areas

  • Space