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Common Condensed Experimenter Data


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1971-11-15 to 1973-03-05


These condensed experimenter data are on binary magnetic tapes, created on an IBM 360 computer, in Univac 1108 format. Each tape contains data from all experiments, -01 to -07, at high resolution. For each orbit of data, there is a header file followed by a data file. The header file consists of 20 Univac 1108 words in BCD format and contains satellite identification, tape processing date, orbit number, start year of orbit, and start and stop day and milliseconds of orbit. Each data file begins with a file header (20 binary words) containing number of elements in the sampling identificaton dictionary (SID), SID creation date, number of analog tapes used to create file, start and stop time of file, and SID program number corresponding to specific onboard flight program. This is followed by multiple SID records used to indicate the type, timing, length, and source of data in the raw telemetry stream. A data block contains multiple records of 1460 words. The first three words of the data record contain the number of valid data frames, record number, and roll start and stop time (in milliseconds) for that data record. Following these words are up to 32 contiguous groups of 45 words containing the SID index (used in decommutating the telemetry data), frame timing, data flags, and a telemetry frame.

Alternate Names

  • Common Condensed Experimntr Data


  • Space Physics: Magnetospheric Studies


  • 71-096A-01A
  • 71-096A-02A
  • 71-096A-03A
  • 71-096A-04A
  • 71-096A-05A
  • 71-096A-06A
  • 71-096A-07A

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Paul H. SmithData ProviderNASA Goddard Space Flight Center
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight

Selected References

  • Gloeckler, G., et al., Software systems for Explorer 45 (S3-A) data analysis, NASA-GSFC, X-626-75-286, Greenbelt, MD, Nov. 1975.
  • DeNatale, P. J., and N. K. Bewtra, Explorer 45 (S3-A) experimenter tape description, Explorer 45 (S3-A) project document, NASA/GSFC, April 1975.
  • Gloeckler, G., User's guide to SSS-A summary plot program, Explorer 45(S3-A) Project Document, NASA/GSFC, Dec. 1973.
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