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Fluxgate Magnetometers

NSSDCA ID: 1962-051A-02

Mission Name: Explorer 14
Principal Investigator:Prof. Laurence J. Cahill, Jr.


This experiment was designed to measure the magnitude and direction of the earth's magnetic field between 3 and 13 earth radii. It consisted of three orthogonal fluxgate magnetometers mounted on the end of an 86.4-cm boom. One magnetometer axis was within 2 deg of the spacecraft spin axis. Each of the three sensors had a range of -500 to +500 nT with a sensitivity of 1 nT. The three components of the magnetic field were all measured within a 50-ms time period once every 327 ms. An inflight calibration system applied a known magnetic field to each sensor in turn once every 115 s. For further details, see Cahill, L. J., Space Research VI, P. 662, 1966.

Alternate Names

  • Explorer14/FluxgateMagnetometers

Facts in Brief

Mass: 1.429 kg
Power (avg): 0.4 W
Bit rate (avg): 0.3 kbps


  • Space Physics: Magnetospheric Studies

Additional Information

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



NameRoleOriginal AffiliationE-mail
Prof. Laurence J. Cahill, Jr.Principal InvestigatorUniversity of Minnesota
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