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Hourly Averaged Count Rates


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1967-05-24 to 1969-05-02


This experimenter-supplied data set gives hourly averaged cosmic-ray proton count rates on one BCD magnetic tape. Each physical record consists of 240 card image logical records. Each logical record contains time and hourly averaged count rates. In the first of four files, count rates for each of the four sensors making up the composition telescope are given. These are of somewhat limited utility because geometric factors are significantly energy dependent. In the second file, 0.7- to 7.6-MeV proton count rates for each of eight azimuthal octants are given. In the third file, count rates for each of eight azimuthal octants obtained from the proportional counter are given. In the last file, 7- to 55-MeV proton count rates for each of eight azimuthal octants are given. The count rates in the last three files are readily convertible to fluxes. The data in each file are complete from launch through May 2, 1969 (file 1), March 16, 1969 (file 2), February 15, 1968 (file 3), and June 11, 1967 (file 4).

Data are available online at

Alternate Names

  • Hourly Avgd Count Rates


  • Space Physics: Heliospheric Studies


  • 67-051A-05A

Additional Information



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



NameRoleOriginal AffiliationE-mail
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight

Selected References

  • King, J. H., IMP series report/bibliography, NASA-GSFC, NSSDC 71-21, Greenbelt, Md., Dec. 1971.
  • UTD data exchange tape for the IMP F satellite, Unpublished, Unnumbered, Undated.
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