Source: 1
ESA’s JUICE has 10 instruments onboard to study the complex systems of Jupiter and its moons in great detail, as shown in the infographic above. In addition to the 10 instruments, it also has a Radiation Monitor (RADEM) and the Planetary Radio Interferometer & Doppler Experiment (PRIDE)2
| Instrument Name | Objectives | Components |
|---|---|---|
| 3GM (Gravity & Geophysics of Jupiter and Galilean Moons) | Gravity field of Ganymede Atmosphere and Ionosphere of Jupiter and moons Oceanic extent in icy moons | KaT (Ka Transponder) USO (Ultrastable Oscillator) HAA (High Accuracy Accelerometer) |
| GALA | Tidal deformation of Ganymede Surface topography of icy moons | Laser Altimeter |
| JANUS | Features and processes on moons Mapping clouds of Jupiter | Optical camera system - 2.4 m resolution on Ganymede - 10 km resolution on Jupiter - 13 filters - 1.3 FoV |
| J-MAG | Jovian magnetic field and its interaction with Ganymede Subsurface oceans of icy moons | Inbound and outbound fluxgate magnetometer sensors |
| MAJIS | Cloud features and atmospheric composition on Jupiter Ice and mineral characterization on icy moon surfaces | Visible and IR hyperspectral imaging spectrometer - = 0.4 to 5.7 microns - Spectral res = 3-7 nm - Spatial res = 25 m (Ganymede), 100 km (Jupiter) |
| PEP | Plasma environment characterization of Jupiter system and icy moons | Particle Environment Package sensors |
| RIME | Subsurface structure of icy moons | Radar (9 km depth) |
| RPWI (Radio and Plasma Wave Investigation) | Radio emissions and plasma environment of Jupiter and icy moons | GANDALF, MIME, FRODO, and JENRAGE 2 Langmuir probes |
| SWI | Temperature structure, composition, and dynamics of Jupiter’s atmosphere Exospheres and surfaces of icy moons | Sub-mm wave instruments (Heterodyne spectrometer - 30 cm antenna) Two spectral ranges |
| UVS | Composition and dynamics of icy moon exospheres Jovian aurorae Composition and structure of Jupiter’s upper atmosphere Nadir observations Solar and stellar occultation sounding | UV imaging spectrograph |
| RADEM (Radiation Monitor) | Radiation exposure of JUICE caused by Jupiter | |
| PRIDE (Planetary Radio Interferometer & Doppler Experiment) | Precise measurements of JUICE’s position and velocity Gravity field investigations of Jupiter and icy moons | Telecom system Radio telescopes VLBI - Very Long Baseline Interferometry |