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Solid-State Detectors

NSSDCA ID: 1971-096A-03

Mission Name: S-Cubed A
Principal Investigator:Dr. Donald J. Williams


The solid-state electron detector was a magnetic spectrometer with an 800-G magnet, and four 300-micrometer, 0.25-sq cm, rectangular, surface barrier, solid-state detectors. Electron intensities were measured in the energy ranges 35 to 70 keV, 75 to 125 keV, 120 to 240 keV, and 240 to 560 keV. After March 1973, due to a failure in the spacecraft analog multiplexer, analog data were not available and the actual energy levels could not be determined without special effort. NSSDC has all the reduced data from this investigation. Some further details regarding the experiment parameters may be found in Longanecker, G. W., and R. A. Hoffman, "S-Cubed-A spacecraft and experiment description," J. Geophys. Res., v. 78, n. 22, pp. 4711-4717, August 1973, and in Barfield, J. N., J. L. Burch, and D. J. Williams, "Substorm associated reconfiguration of the dusk side equatorial magnetosphere - a possible mechanism for isolated plasma regions," J. Geophys. Res., v. 80, n. 1, pp. 47-55, January 1975.

Alternate Names

  • Measurement and Study of Magnetospheric Storms and Ring Currents
  • S-CubedA/Solid-StateDetectors

Facts in Brief

Mass: 1.38 kg
Power (avg): 1.2 W

Funding Agency

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


  • 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
Dr. Donald J. WilliamsPrincipal InvestigatorApplied Physics
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