Figure 1.

Evolution of Juno's trajectory in magnetic dipole coordinates calculated using the JRM09 model dipole coefficients. Model magnetic field lines (violet) are drawn every 2° in magnetic colatitude and contours of the model magnetic field magnitude are indicated from 20 to 2,000 nT (blue). The washer‐shaped disc within which the azimuthal (ring) currents flow (into the paper) is indicated by the shaded region. The radial distance to each of the Galilean satellites (Io, Europa, Ganymede, and Callisto) is indicated along the magnetic equator but in this coordinate system they oscillate up and down as the planet rotates due to the angular separation (10.3°) between the dipole and rotation axes.