NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

42 s Magnetic Field Vectors in SEQ Coordinates


Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1973-11-03 to 1974-04-09


This data set consists of 42 s averaged magnetic field vectors in solar equatorial coordinates on binary, standard labeled magnetic tape. The data were recorded on an IBM 360 computer. Each tape contains a header record of 10,152 bytes followed by data records of 11,652 bytes. Header records contain a satellite ID; day of year; milliseconds of the day of the first data record; year, day, and month of data generation; coordinate system of the data; cruise mode; low and high range; X, Y, and Z components; sensitivity levels for each sensor; magnetic coupling coefficients; Earth, Venus, and Mercury true orbit of date; Sun true equator of date; and radius of Earth, Venus, and Mercury in kilometers. The data records contain averages of the ambient magnetic field. Each record contains one 42 s average, seven 6 s averages, and thirty-five 1.2 s averages. Each data record also contains year and day-of-year of data of the beginning of the current 42 s block, housekeeping and status words, and data quality flags.

Data are available online at


  • Space Physics Data Facility


  • Space Physics: Heliospheric Studies


  • 73-085A-04D

Additional Information



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



NameRoleOriginal AffiliationE-mail
Dr. Kenneth W. BehannonData ProviderNASA Goddard Space Flight Center 
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight
[] NASA Logo -