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Saturn Encounter-Charged Particles


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)

Time span: 1979-08-30 to 1979-09-05


These charged particle data from the Saturn encounter were supplied by the experimenter on 9-track, 1600-bpi, ASCII magnetic tape created on a UNIVAC 418 computer. Each 5184-byte record consists of a time cluster, 3 data matrices containing particle count rates (angular), spin-averaged count rates, and raw data, a corresponding magnetic field matrix containing helium vector magnetometer data, trajectory data on spacecraft position, and an angle matrix containing spacecraft roll angles. The 140-item particle count rate array consists of 14 angular bins for each of 10 detector rates. Various combinations of detectors yield information on 0.04 to 21 MeV electrons and 0.61 to 77.5 MeV protons; 0.55 to 21 MeV electrons and 6.6 to 77.5 MeV protons; electrons above 21 MeV and protons above 77.5 MeV; and electrons above 0.06 MeV. The data cover 6 days which bracket the closest approach to Saturn. Count rates have been corrected for dead time using the methods described in J. Geophys. Res. (v. 85, 1980, pp. 5679-5694). This article also discusses problems associated with the identification of individual particle species.

Alternate Names

  • Saturn Enc. - Charged Particles


  • Planetary Science: Fields and Particles


  • 73-019A-11B

Additional Information



Questions and comments about this data collection can be directed to: Dr. John F. Cooper



NameRoleOriginal AffiliationE-mail
Prof. James A. Van AllenData ProviderUniversity of Iowa
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