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Hourly Averaged Interplanetary Plasma Parameters as Supplied by MIT


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1967-07-14 to 1968-07-25


This experimenter-supplied data set consists of hourly averaged interplanetary plasma data on one blocked, BCD, magnetic tape written by an IBM 360 computer. The block size is 1600 characters, with a logical record size of 80 characters. Each logical record contains one set of hourly averaged interplanetary plasma parameters, including the averaged thermal speed, the averaged number density, the averaged flow speed, the averaged GSE longitude and latitude of the solar wind flow direction, and the corresponding standard deviations of each of the averages. The data are time ordered. Blocks of zeros have been included where it is not known if the spacecraft was interplanetary. Data records on the tape begin at the start of a solar rotation, July 14, 1967, but records are filled with zeros until after spacecraft launch.

Data are available online at

Alternate Names

  • Hr Avg Int Plasma Param-Block BCD


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


  • 67-070A-06A

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
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