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3-Channel Proton Flux, 256-Second OMNI and Sector Data


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1978-08-15 to 1978-12-31


This proton flux data set is on binary magnetic tape. Each file contains one day's data in 2560-byte physical records. Each physical record contains 32 80-byte logical records, the first of which is a record label and the rest are data records or fill records at the end of the last physical record in the file. The header records contain the year, day of year (Jan. 1=1), times of the first and last data records in the physical record (each expressed as hours of the day and seconds of the hour), and the number of logical records containing data in the physical record. The experiment records data over an integral number of spacecraft spins, which are not the same as or synchronized with the telemetry sampling period. Therefore, each data record has data from an integral number of spins, which varies from record to record. The data records contain: the start time of the record (hours of day and seconds of hour); the number of spins of data in the record for each of the three telescopes in the instrument; an overflow flag for the sector count data; the isotropic components of the differential flux (particles/cm**2*s*sr*keV) for the energy ranges 35 to 56, 91 to 147, and 384 to 620 keV; and the particle counts for each of the eight spacecraft rotation sectors for each of the three telescopes.

Data are available online at

Alternate Names

  • 3-Ch Protn Flux,256-s OMNI+Sector


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


  • 78-079A-08A

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Robert J. HyndsData ProviderImperial
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight
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