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Geiger Tube Electron Counters

NSSDCA ID: 1969-097A-05

Mission Name: Azur
Principal Investigator:Dr. Lothar Rossberg


The experiment consisted of four Geiger-Mueller counters (Eon type 6213) used to detect electrons especially after solar flares. One tube was placed on the lower side of the satellite looking parallel to the lines of force, one was placed in the upper part of the satellite looking antiparallel to the lines of force, two were placed on the satellite platform looking perpendicular to the lines of force. The detector was designed to detect electrons with energies E>40 keV, but it was also capable of detecting protons of energies E>0.7 MeV. The experiment worked normally until the spacecraft telemetry system malfunctioned in early July 1970.

Alternate Names

  • Azur/GeigerTubeElectronCounters
  • EI95 (GRS-A Code)

Facts in Brief

Mass: 2 kg
Power (avg): 0.2 W


    Additional Information

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



    NameRoleOriginal AffiliationE-mail
    Dr. Lothar RossbergPrincipal InvestigatorNational Research Council of Canada
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