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Vector Helium Magnetometer

NSSDCA ID: 1978-079A-02

Mission Name: ISEE 3
Principal Investigator:Dr. Edward J. Smith


The instrumentation for this experiment consisted of a boom-mounted triaxial vector helium magnetometer. Measurements were made of the steady magnetic field and its low-frequency variations. Eight field amplitude ranges (minus to plus 4, 14, 42, 144, 640, 4000, 22,000, and 140,000 nT) were available. The instrument ranged up and down automatically or could be commanded into a specific range. The field equivalent noise power spectral density was 2E-4 nT squared per Hz (independent of frequency), or 0.01 nT rms in the passband 0 to 0.5 Hz. A single-axis spectrum analyzer measured fluctuations parallel to the spacecraft spin axis in three frequency bands centered at 0.33, 3.2, and 8.8 Hz.

Alternate Names

  • ISEE3/VectorHeliumMagnetometer
  • urn:nasa:pds:context:instrument:ice.mag

Facts in Brief

Mass: 3 kg
Power (avg): 4.3 W

Funding Agency

  • NASA-Office of Space Science (United States)


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

Additional Information

Questions and comments about this experiment can be directed to: Dr. H. Kent Hills



NameRoleOriginal AffiliationE-mail
Prof. George L. SiscoeOther InvestigatorUniversity of California, Los
Dr. Douglas E. JonesOther InvestigatorBrigham Young University
Dr. Leverett Davis, Jr.Other InvestigatorCalifornia Institute of Technology
Dr. Bruce T. TsurutaniOther InvestigatorNASA Jet Propulsion
Dr. James A. SlavinOther InvestigatorNASA Goddard Space Flight
Dr. Edward J. SmithPrincipal InvestigatorNASA Jet Propulsion

Selected References

  • Frandsen, A. M. A., et al., ISEE-C vector helium magnetometer, IEEE Trans. Geosci. Electron., GE-16, No. 3, 195-198, doi:10.1109/TGE.1978.294545, July 1978.
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