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Monitor of Energetic Particle Flux

NSSDCA ID: 1968-041A-01

Mission Name: ESRO 2
Principal Investigator:Prof. Harry Elliot


This experiment was designed to measure the flux of energetic particles in the vicinity of the earth with two standard GM counters (types Anton 320 and Anton 112). The counters provided data on cosmic-ray and radiation belt particles for comparision with earlier measurements. The Anton 112 counter was used to study particle fluxes below the main trapping region of the inner belt. The thresholds for these two counters was as follows -- Anton 302 - electrons 3 MeV, protons 20 MeV, Anton 112 -- electrons 1 MeV, protons 15 MeV. The viewing angle of the Anton type 302 detector with respect to the spin axis of the satellite was 90 deg. The experiment performed normally throughout the mission, except for some difficulties encountered during the period July to September 1968. The spacecraft decayed from orbit on May 8, 1971.

Alternate Names

  • ESRO2/MonitorofEnergeticParticleFlux
  • S-25


    Additional Information

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



    NameRoleOriginal AffiliationE-mail
    Mr. Arthur BewickGeneral ContactImperial
    Dr. John J. QuenbyOther InvestigatorImperial
    Prof. Harry ElliotPrincipal InvestigatorImperial College
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