The magnetic field of Jupiter - A generalized inverse approach

Details The magnetic field of Jupiter - A generalized inverse approach The magnetic field of Jupiter - A generalized inverse approach

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.7679c&link_type=abstract

Journal of Geophysical Research, vol. 86, Sept. 1, 1981, p. 7679-7693.

Astronomy and Astrophysics

Astronomy

60

Jupiter (Planet), Planetary Magnetic Fields, Planetary Magnetospheres, Planetology, Astronomical Models, Flyby Missions, Magnetic Field Configurations, Pioneer 10 Space Probe, Pioneer 11 Space Probe, Spaceborne Astronomy, Voyager Project, Jupiter, Magnetic Fields, Charged Particles, Trajectories, Maps, Surface, Techniques, Models, Observations, Parameters, Origin, Procedure, Data, Analysis, Theoretical Studies, Pioneer 11, Comparisons, Magnetometers, Intensity, Magnitude, Spherical Harmonics, Currents, Magn

Scientific paper

The estimation of planetary magnetic fields from observations of the magnetic field gathered along a spacecraft flyby trajectory is examined with the aid of generalized inverse techniques, with application to the internal magnetic field of Jupiter. Model non-uniqueness resulting from the limited spatial extent of the observations and noise on the data is explored and quantitative estimates of the model parameter resolution are found. The presence of a substantial magnetic field of external origin due to the currents flowing in the Jovian magnetodisc is found to be an important source of error in estimates of the internal Jovian field, and new models explicitly incorporating these currents are proposed. New internal field models are derived using the vector helium magnetometer observations and the high field fluxgate observations of Pioneer 11, and knowledge of the external current system gained from the Pioneer 10 and Voyagers 1 and 2 encounters.

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