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Hourly Values of Reduced Total Electron Content Data on Microfilm


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

Time span: 1968-11-09 to 1969-07-16


This data set consists of digitized and plotted hourly values of total electron content through the ionosphere and the solar wind. These values are reduced data calculated from measurements of the differential delay of the group velocity. The hourly data are representative values manually selected from analog records. Each set of hourly values is for the portion of the day (about 12 h per day) when the spacecraft was in view from the Stanford transmitter. This data set is on one reel of 35-mm microfilm generated at NSSDC from data supplied by the experimenter. This reel of microfilm also contains identical data for other time periods from Pioneers 6 (65-105A-04B), 7 (66-075A-04B), 8 (67-123A-03B), and Mariner 5 (67-060A-02B), and solar wind electron density plots from Pioneers 6 (65-105A-04E), 7 (66-075A-04E), 8 (67-123A-03D), and 9 (68-100A-03D).

Alternate Names

  • Total Elect Content,Hrly Val (MO)


  • Space Physics: Heliospheric Studies


  • 65-105A-04B
  • 65-105A-04E
  • 66-075A-04B
  • 66-075A-04E
  • 67-060A-02B
  • 67-123A-03B
  • 67-123A-03D
  • 68-100A-03B
  • 68-100A-03D

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Thomas A. CroftGeneral ContactStanford
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