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NASA Space Science Data Coordinated Archive Header

1.2, 6, and 42 s Magnetic Field and Trajectory Data for Mercury 1 Flyby


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

Time span: 1974-03-26 to 1974-03-31

Ancillary data are not needed for the proper use of these data


This data set consists of 1.2 s, 6 s and 42 s average magnetic field vectors, in Mercury-centered Cartesian coordinates on binary, standard labeled magnetic tape recorded on an IBM 360 computer. The tape contains a header record of 10,152 bytes followed by data records of 11,652 bytes. The header record contains a satellite ID, day of year and milliseconds of the day of the first data record, coordinate system description and instrument information. The data records contain averages of the ambient field. Each record contains one 42 s average, seven 6 s averages, and thirty-five 1.2 s averages. Vector RMS error estimates are provided. Each data record also contains the year and day of the data, milliseconds of the day of the current 42 s block, housekeeping and status words, and data quality flags. Spacecraft ephemeris information is also included after each 42 s set of measurements.


  • NASA Space Science Data Coordinated Archive


  • Planetary Science: Fields and Particles


  • 73-085A-04R

Additional Information



Questions or comments about this data collection can be directed to: Dr. Edwin V. Bell, II.



NameRoleOriginal AffiliationE-mail
Dr. Kenneth W. BehannonGeneral ContactNASA Goddard Space Flight Center 
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