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Descrizione
JUICE - JUpiter ICy moons Explorer - is the first large mission in the ESA Cosmic Vision 2015-2025 program. The mission was launched on April 14th 2023, with arrival at Jupiter in July 2031. It will make detailed observations of Jupiter and three of its largest moons: Ganymede, Callisto, and Europa. MAJIS (Moons And Jupiter Imaging Spectrometer), the visible-IR imaging spectrometer on board JUICE, will investigate the spectral characteristics of Jupiter, the Galilean satellites, rings, small satellites, and exospheres with two channels: the VIS-NIR channel in the spectral range from 0.5 to 2.35 μm, and the IR channel from 2.28 to 5.56 μm. The IFOV is 150 µrad, with 400 pixels across the 60 mrad FOV and 508 spectels. The spectral sampling is about 3.6 nm/band and 6.5 nm/band for VIS-NIR and IR channels respectively. The Jupiter icy satellites, Ganymede, Europa, and Callisto, have as many similarities as differences. Their surface is at the interface between the interior and space, and as such records endogenous processes tied to the geological activity and exogenous processes due to their surrounding environments. These processes, responsible for the morphology and composition of their surface, are not yet well understood. Studying their composition would thus provide new insight into the geochemical state of the subsurface as well as the space environment. Finally, JUICE made an Earth-Moon flyby, and a long distance observation of the 3I/Atlas comet, resulting in an extremely important opportunity to verify the calibration and performance in flight with real extended targets.
| Sessione | Sistema Solare e astrobiologia |
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