The Submillimetre Wave Instrument (SWI) will investigate the Galilean moons of the giant planet Jupiter, the chemistry, meteorology, and structure of Jupiter’s middle atmosphere as well as atmospheric and magnetospheric coupling processes.
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PEP (Particle Environmental Package) is a particle spectrometer to measure neutral and charged particles in the Jupiter system. The PEP-Instrument onboard JUICE consists of two units with a total of six different sensors.
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The ESA-Mission JUICE shall explore the Jovian system. To be launched in 2022 the spacecraft will arrive at Jupiter in 2030. After some initial flybys at the moons Europa, Ganymede, and Callisto JUICE will intensively study the Jovian atmosphere and the plasma environment (Jovian Magnetosphere). The main phase of the mission is dedicated to the moon Ganymede since JUICE will for the very first time ever in history enter in an orbit around an outer planet's moon and study the moon's surtface, its subsurface ocean, and its interaction with the Jovian magnetosphere.
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