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Electron and Proton Particle Data


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1977-11-03 to 1979-04-01


This data set is proprietary and not for distribution. It is submitted by experimenters to NSSDC for the purpose of the Coordinated Data Analysis Workshops (CDAW). The data sets submitted for CDAW are usually small, and the time coverage is usually scanty within the time span indicated. However, this data set (or part of it) may be provided to the general science community through an online data set in CDF format. For more detailed description, as well as access information, please contact the NSSDC Request Coordination Office at

These experimenter-supplied, particle data are on binary magnetic tape created on a Varian computer (four of the tapes were copied on the Modcomp IV computer at NSSDC). A physical record contains two logical records of three parts: record header, experimental data, and analog housekeeping information. The first 26 words are the record header consisting of time in day of year and milliseconds of day; satellite position in geocentric solar ecliptic coordinates; spacecraft clock; frame count and average frame rate; and a number of data flags. The experiment data (words 27-278) consist of 64 minor frames of electron and ion fluxes at energies of 2, 6, 15, and 30 keV and ion fluxes at 200 keV, and coincidence count rates of electrons and ions. The rest of the logical record is analog housekeeping, which specifies the experiment condition.

Data are available online at

Alternate Names

  • Particle Data


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


  • 77-102A-10B

Additional Information



Questions and comments about this data collection can be directed to: Dr. H. Kent Hills



NameRoleOriginal AffiliationE-mail
Prof. George K. ParksGeneral ContactUniversity of
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight
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