This graphic shows a comparison of the observed change in Jupiter's radial magnetic field, over time, as well as the change calculated from the model, assuming eastward drift of the "Great Blue Spot" (GBS).
More information about Juno is at https://www.nasa.gov/juno and https://missionjuno.swri.edu.
NASA's Juno Mission Spies Vortices Near Jupiter's North Pole
Juno Skims the Cloud Tops of Jupiter
Juno Captures Moon Shadow on Jupiter
NASA's Juno Spacecraft Glimpses Jupiter's Moons Io and Europa
A View of Crescent Jupiter from Juno
A Striking Crater on Jupiter's Moon Ganymede
Earth's Ocean and Jupiter's Atmosphere (Animation)
Audio of Juno's Ganymede Flyby
NASA’s Perseverance Makes New Discoveries in Mars’ Jezero Crater
45 Years Ago: Voyager 2 Begins Its Epic Journey to the Outer Planets and Beyond
JPL and the Space Age: The Footsteps of Voyager
JPL and the Space Age: The Stuff of Dreams
Voyager, NASA’s Longest-Lived Mission, Logs 45 Years in Space
Ocean Worlds Life Surveyor (OWLS)
NASA’s Europa Clipper Spacecraft Kicks Assembly Into High Gear
JPL is a federally funded research and development center managed for NASA by Caltech.