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

K.-H. Fornacon (1) , H. U. Auster (1) , E. Georgescu (2, 3) , W. Baumjohann (2) , Karl-Heinz Glassmeier (1) , G. Haerendel (2) , J. Rustenbach (2) , M. Dunlop (4)

1 Institut für Geophysik und Meteorologie [Braunschweig]
2 MPE - Max-Planck-Institut für Extraterrestrische Physik
3 ISS - Institute of Space Science [Bucharest-Măgurele]
4 Imperial College London

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.

Domaines: Océan, Atmosphère; Sciences de la Terre

K.-H. Fornacon, H. U. Auster, E. Georgescu, W. Baumjohann, Karl-Heinz Glassmeier, et al.. The magnetic field experiment onboard Equator-S and its scientific possibilities. Annales Geophysicae, 1999, 17 (12), pp.1521-1527. ⟨hal-00316719⟩