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Plots of 1-min Averaged Pulse Rates vs L on Microfilm


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

Time span: 1964-09-07 to 1967-06-04


This ionization chamber count rate data set is on one reel of 16-mm microfilm that was generated at NSSDC from 322 plots submitted by the experimenter. The data set consists of time-ordered, 1-min averages of the number of normalized pulses per second times 1000, plotted on a logarithmic scale vs L (in earth radii). Each frame presents 2 h of playback data for L values between 1 and 8. Also presented on each frame are the beginning and end times and an indication of whether the data are for an inbound (apogee to perigee) or an outbound pass of the spacecraft. Approximately 65% of the orbits during the period from September 7, 1964, to June 4, 1967, are represented in this data set.

Alternate Names

  • Ion Chamber Rates vs L, Mfilm


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


  • 64-054A-20D

Additional Information



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



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