Astronomy:Jupiter Europa Orbiter

Short description: Canceled orbiter mission concept to Europa

Jupiter Europa Orbiter

Montage with JEO
Mission type	Europa orbiter
Operator	NASA
Website	ESA Webpage on Laplace/EJSM
Mission duration	cruise period: 6 years (proposed), science period: 3 years (proposed)
Spacecraft properties
Launch mass	1371 kg
Start of mission
Launch date	2020 (proposed)
Rocket	Delta IV-H or Atlas V
Orbital parameters
Reference system	Europa orbit
Inclination	95°–100°
Europa orbiter
Orbital insertion	2026 (proposed)

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. Its main goal would have been to look for evidence of a possible subsurface ocean.

In June 2015, a more economical mission, the Europa Multiple-Flyby Mission (Europa Clipper) was approved by NASA and entered the formulation stage.

See also

• 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).