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Cosmic-Ray Ionization

NSSDCA ID: 1967-073A-07

Mission Name: OGO 4
Principal Investigator:Dr. Hugh R. Anderson


This experiment was designed to measure cosmic-ray and solar flare particle intensities (protons above 10 MeV, electrons above 0.5 MeV) using an ion chamber. The ion chamber was mounted at the end of a spacecraft boom about 2.5 m from the main body of the spacecraft. The ion chamber operated successfully for only the first 160 orbits of the satellite.

Alternate Names

  • Cosmic Ray and Polar Region Ionization Study
  • OGO4/Cosmic-RayIonization


  • Space Physics: Magnetospheric Studies
  • Space Physics: Heliospheric Studies

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Dr. H. Victor NeherOther InvestigatorCalifornia Institute of Technology
Dr. Hugh R. AndersonPrincipal InvestigatorScience Applications, Inc
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