Articles | Volume 17, issue 12
Ann. Geophys., 17, 1521–1527, 1999

Special issue: Equator S

Ann. Geophys., 17, 1521–1527, 1999

  31 Dec 1999

31 Dec 1999

The magnetic field experiment onboard Equator-S and its scientific possibilities

K.-H. Fornacon1, H. U. Auster1, E. Georgescu3,2, W. Baumjohann2, K.-H. Glassmeier1, G. Haerendel2, J. Rustenbach2, and M. Dunlop4 K.-H. Fornacon et al.
  • 1Institut für Geophysik und Meteorologie der Technischen Universität, D-38106 Braunschweig, Germany
  • 2Max-Planck-Institut für extraterrestrische Physik, D-85740 Garching, Germany
  • 3Institute of Space Sciences, Bucharest, Romania
  • 4Imperial College, London SW7 2BZ, UK

Abstract. The special feature of the ringcore fluxgate magnetometer on Equator-S is the high time and field resolution. The scientific aim of the experiment is the investigation of waves in the 10–100 picotesla range with a time resolution up to 64 Hz. The instrument characteristics and the influence of the spacecraft on the magnetic field measurement will be discussed. The work shows that the applied pre- and inflight calibration techniques are sufficient to suppress spacecraft interferences. The offset in spin axis direction was determined for the first time with an independent field measurement by the Equator-S Electron Drift Instrument. The data presented gives an impression of the accuracy of the measurement.

Key words. Magnetospheric physics (instruments and techniques) · Space plasma physics (instruments and techniques)

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