8 December 2022


The JUICE mission

The JUICE (JUpiter ICy moons Explorer) mission is the first L-class mission selected under the European Space Agency (ESA) Cosmic Vision 2015-2025 program. The launch will take place in 2022 for an arrival in the Jupiter environment in 2030. The objectives are the exploration of the Jovian environment and the three Galilean moons: Europa, Callisto and Ganymede. A particular attention is paid to Ganymede because of its similarities with the Earth: presence of a strong magnetic field, an ionosphere and an ocean.

mission spaciale JUICE LPC2E

Artist’s view of JUICE exploring the Jupiter system. Credit ESA image.

The MIME instrument

The MIME (Mutual Impedance MEasurement) instrument was proposed in 2012, through the RPWI (Radio Plasma Waves Investigation) consortium led by Sweden. The objectives of the MIME instrument are to measure plasma parameters: electron density, and under certain conditions temperature and electron gyro frequency. The technique used is the mutual impedance which allows access to an absolute measurement of the electron density derived from the plasma frequency on a wide band 3kHz – 3 MHz. This wide band allows access to densities of some particles per cm3 up to 10 000 per cm3. The instrument interacts with two types of sensors, four Langmuir probes and three wire antennas dedicated to high frequency waves.

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Contacts at LPC2E : Pierre.Henri@cnrs-orleans.fr