EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Survey of Jupiter’s Plasma Disk from Juno Observations

Fran Bagenal1, Ezra Huscher1, Robert Wilson1, Frederic Allegrini2, and Robert Ebert2
Fran Bagenal et al.
  • 1University of Colorado, Laboratory for Atmospheric & Space Physics, Boulder, CO, United States of America (
  • 2Southwest Research Institute, San Antonio, TX, United States of America

Using 30 inbound passes through the Jovian system, we combine measurements from the fields and particles instruments on the Juno spacecraft to survey the properties of Jupiter's plasma disk. Juno's orbit is particularly useful for exploring the variation in plasma conditions with latitude as well as radial distance (from ~10 to ~50 RJ). We present basic plasma properties (composition, density, temperature, velocity, magnetic field strength) to make maps of the plasma environment. Also show that on some of the 53-day orbits the plasma sheet has regular structure (density having roughly Gaussian distribution with latitude and decreasing with distance) but there are also highly irregular orbits with low or erratic density distributions.

How to cite: Bagenal, F., Huscher, E., Wilson, R., Allegrini, F., and Ebert, R.: Survey of Jupiter’s Plasma Disk from Juno Observations, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-989,, 2021.

Corresponding displays formerly uploaded have been withdrawn.