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Histogram Plots on Microfilm


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

Time span: 1973-10-30 to 1977-06-25


This data set is composed of 35-mm microfilm images of half-day plots of the counting rates for each channel averaged over 326.4 s. Because the data are averaged over sectors, the directional information is not preserved. Each frame contains four channels, with the channel label appearing to the left of the first plotted point. The ordinate scale is logarithmic in units of c/s, and the beginning power of 10 for each channel is given at the bottom of the frame. The maximum and minimum values of each channel average for the half-day period are also given at the bottom; in addition, the orbit projection into the solar ecliptic plane with model magnetopause and bow shock boundaries is presented.

Alternate Names

  • Histogram Plots, Microfilm


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


  • 72-073A-05D
  • 73-078A-05C

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Donald J. WilliamsGeneral ContactNOAA Environmental Research
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