Jupiter’s magnetodisc and magnetospheric currents during Juno’s prime mission.

<p>We study Jupiter&#8217;s magnetic field and plasma parameters during Juno&#8217;s prime mission, using data from Juno&#8217;s FGM magnetometer and ion measurements from the&#160; Jovian Auroral Distributions Experiment Ion (JADE-I) sensor on Juno.&#160; We compare the observed poloidal magnetic field and&#160; plasma density, angular velocity and temperature profiles, with predictions from the Nichols et al. (2015) &#160;axisymmetric magnetic vector potential model.&#160; This &#160;magnetodisc model balances the j x B force of the azimuthal magnetodisc currents with the outwards forces of the plasma pressure gradient, plasma pressure anisotropy and the centrifugal force associated with the rotating plasma.&#160; By varying the model parameters for each orbit we model how Jupiter&#8217;s mass outflow rate, plasma angular velocity and &#8216;hot&#8217; and &#8216;cold&#8217; plasma temperatures and densities vary throughout Juno&#8217;s prime mission.&#160; We further examine how changes in magnetospheric conditions are related to variations in the magnetosphere&#8211;ionosphere coupling parameters, in particular by studying the azimuthal and radial currents and the ionospheric field-aligned current density.&#160;</p>