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Low-Energy Integral Spectrum Measurement Experiment

NSSDCA ID: 1967-070A-07

Mission Name: Explorer 35
Principal Investigator:Mr. Gideon P. Serbu


A planar multi-grid sensor programmed as a retarding potential analyzer was used to observe the intensity of the electron and ion components of the low energy plasma near the moon. Integral spectra were obtained for both ions and electrons in the energy range from 1 to 500 eV. A complete spectrum was obtained every 80 s. Data from this investigation no longer exist.

Alternate Names

  • Explorer35/Low-EnergyIntegralSpectrumMeasurementExperiment
  • Thermal Ion and Electron Probe-Retarding Potential Analyzer


  • 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. Eugene J. MaierOther InvestigatorNASA Goddard Space Flight Center
Mr. Gideon P. SerbuPrincipal InvestigatorNASA Goddard Space Flight Center
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