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Low-Energy Proton and Electron Differential Energy Analyzer (LEPEDEA)

NSSDCA ID: 1968-014A-07

Mission Name: OGO 5
Principal Investigator:Prof. Louis A. Frank


This experiment was designed to measure the differential energy spectrum of protons and electrons over the range 5 eV to 100 keV in the earth's magnetosphere and its environment. The experiment was also to measure trapped alpha particles over the range 0.4 to 200 MeV. The detector was an electrostatatic analyzer using Bendix channeltron electron multipliers. The experiment failed March 12, 1968, 9 days after launch.

Alternate Names



  • 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
Prof. James A. Van AllenOther InvestigatorUniversity of Iowa
Dr. Thomas P. ArmstrongOther InvestigatorUniversity of Kansas
Dr. Stamatios M. KrimigisOther InvestigatorApplied Physics
Prof. Theodore Allan FritzOther InvestigatorNOAA Environmental Research
Prof. Louis A. FrankPrincipal InvestigatorUniversity of
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