Juno is a solar-powered spacecraft orbiting Jupiter's poles to map its deep atmospheric dynamics, core gravity field, and massive magnetosphere. Now in its extended mission, Juno is executing close flybys of the Galilean satellites—including high-resolution flybys of volcanic Io and fractured Europa—unveiling tidal volcanism and magnetic induction.
| Sensor | Subsystem | Scientific Measurement Function | State |
|---|---|---|---|
| JIRAM | Jovian Infrared Auroral Mapper |
Infrared camera and spectrometer mapping Io lava lakes and polar cyclones.
|
Active |
| MWR | Microwave Radiometer |
Probes deep atmosphere below ammonia clouds down to hundreds of bars.
|
Active |
| MAG | Fluxgate Magnetometer |
Maps the intricate Jovian internal dynamo magnetic field.
|
Active |
| JunoCam | Visible Light Imager |
High-resolution public science camera capturing atmospheric vortices.
|
Active |