Jupiter Europa Orbiter

Not to be confused with Jovian Europa Orbiter or Europa Orbiter.

As a part of the defunct Europa Jupiter System Mission – Laplace (EJSM-Laplace), the Jupiter Europa Orbiter (JEO) was a proposed orbiter probe slated for lift-off in 2020 and planned for detailed studies of Jupiter's moons Europa and Io as well as the Jovian magnetosphere.^[1] Its main goal would have been to look for evidence of a possible subsurface ocean.^[2]

Jupiter Europa Orbiter

Artist concept of the Europa Jupiter System Mission: Jupiter Europa Orbiter (top) and Jupiter Ganymede Orbiter (bottom).
Mission type	Europa orbiter
Operator	NASA
Website	sci.esa.int
Mission duration	Cancelled
Spacecraft properties
Launch mass	1,371 kg (3,023 lb)
Start of mission
Launch date	2020 (planned)
Rocket	Delta IV Heavy or Atlas V
Orbital parameters
Reference system	Europa orbit
Inclination	95°–100°
Europa orbiter
Orbital insertion	2026 (proposed)
Europa Jupiter System Mission (EJSM–Laplace) ← Jupiter Ganymede Orbiter Jupiter Magnetospheric Orbiter →

In June 2015, a more economical mission, the Europa Multiple-Flyby Mission, renamed into Europa Clipper, was approved by NASA and entered the formulation stage.^[3]

See also

• Spaceflight portal

• Europa Orbiter (former NASA plan cancelled in 2002).
• Europa Clipper (the next mission plan for Europa, non-nuclear orbiter for Jupiter doing Europa flybys).
• Europa Lander (NASA) (stand-alone mission for NASA Europa Lander) (Note: there was also a concept for a Europa Clipper add-on lander).