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Solar Wind Ion Composition, 300-600 km/s 840 eV/Q to 11.7 keV/Q; M/Q = 1.5 to 5.6

NSSDCA ID: 1978-079A-11

Mission Name: ISEE 3
Principal Investigator:Dr. Keith W. Ogilvie


This experiment consisted of a hemispherical electrostatic energy analyzer and a Wien velocity filter configured as a mass spectrometer to determine the charge state and isotopic constitution of the solar wind. The instrument had an energy-per-unit-charge range of 0.84 to 11.7 keV per charge, a mass-per-unit-charge range of 1.5 to 5.6 u per charge, and a velocity range of 300 to 600 km/s.

Alternate Names

  • ISEE3/SolarWindIonComposition,300-600km/s840eV/Qto11_7keV/Q;M/Q=1_5to5_6
  • Plasma Composition

Facts in Brief

Mass: 5.6 kg
Power (avg): 3 W

Funding Agency

  • NASA-Office of Space Science Applications (United States)


  • Space Physics: Heliospheric Studies

Additional Information

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



NameRoleOriginal AffiliationE-mail
Dr. Don L. LindOther InvestigatorNASA Johnson Space Center
Prof. Johannes GeissOther InvestigatorUniversitat
Dr. Mario H. AcunaOther InvestigatorNASA Goddard Space Flight Center
Dr. Michael A. CoplanOther InvestigatorUniversity of
Dr. Keith W. OgilviePrincipal InvestigatorNASA Goddard Space Flight

Selected References

  • Coplan, M. A., et al., Ion composition experiment, IEEE Trans. Geosci. Electron., GE-16, No. 3, 185-191, July 1978.
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