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Low-Energy Sector-Averaged Flux Data


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

Time span: 1979-02-24 to 1979-03-21


This data set consists of sector-averaged particle fluxes in the vicinity of Jupiter and is on binary magnetic tape created on a PDP-11 computer. Each logical record begins with header information dealing with the time interval for which measurements were collected and the averaging interval. This is followed by count rates from 91 data channels in each of 8 sector positions plus a sector average. The species counted, the number of channels, and their energy ranges (in MeV for electrons and MeV/nucleon for other particles) are (1) electrons, 12 channels, 0.015 to > 8.5; (2) protons, 8 channels, 0.27 to > 240; (3) Z.GE.1, 8 channels, 0.03-4.01; (4) Z.GE.2, 2 channels, 0.98-4.22; (5) alphas, 11 channels, 0.075-64; (6) light nuclei, 3 channels, 0.60-21; (7) medium nuclei, 10 channels, 0.047-200; (8) heavy nuclei, 8 channels, 0.062 to > 125; (9) ions, 20 channels, 0.285 to 59; (10) miscellaneous singles, 8 channels; and (11) miscellaneous coincidence, 1 channel. The spacing of channels is generally logarithmic. An estimate of counting rate uncertainties follows this, and is in turn followed by the number of samples which go into determining each count rate (in terms of the basic accumulation interval). The remainder of the data set consists of reduced data. Fluxes corresponding to the count rates mentioned above have been calculated by applying corrections for dead time, geometrical factors, and passband. Following this is an estimate of the flux uncertainties. Timeresolution depends on the step rate and can vary from 6 seconds to 6 minutes.

Alternate Names

  • Low-Energy Sector-Avg. Flux Data


  • Planetary Science: Fields and Particles
  • Space Physics: Heliospheric Studies


  • 77-084A-07A

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Stamatios M. KrimigisGeneral ContactApplied Physics
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