Jupiter Magnetospheric Orbiter the orbiter was proposed for a lift-off in 2020 together with ESA's Jupiter Ganymede Orbiter (JGO) from which it would undock upon its arrival at Jupiter in 2025/2026. However, the EJSM collaboration was disbanded and NASA renamed its initiative with Europa Multiple-Flyby Mission, ESA's Jupiter Icy Moon Explorer, and Roscosmos's Laplace-P. The JMO objective was to undertake detailed "in situ" studies of the magnetosphere of Jupiter as a template for an astrophysical magnetised disk for "3-point" investigations of the Jupiter system via synergistic observations with other orbiters. The size and weight of the JMO would have been limited to carry
Hermippe (moon) August 2003 by the IAU, after Hermippe, a lover of Zeus (Jupiter). Hermippe belongs to the Ananke group, retrograde irregular moons which orbit Jupiter between 19.3 and , at inclinations of roughly 150°. Hermippe (moon) Hermippe ( ; Greek "Ερμίππη"), or ', is a natural satellite of Jupiter. It was discovered by a team of astronomers from the Institute for Astronomy of the University of Hawaii led by David Jewitt and Scott S. Sheppard and Jan Kleyna in 2001, and given the temporary designation '. Hermippe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of