Jupiter Icy Moons Orbiter

Jupiter Icy Moons Orbiter

Artist's conception of the JIMO spacecraft exploring Jupiter and its moons
Names	JIMO
Mission type	Jupiter orbiter
Operator	NASA
Mission duration	Cancelled
Spacecraft properties
Manufacturer	Northrop Grumman
Launch mass	Total (fully assembled): 36,375 kg (80,193 lb)
Dry mass	Spacecraft module: 16,193 kg (35,699 lb) Reactor module: 6,182 kg (13,629 lb)
Payload mass	1,500 kg (3,300 lb)
Dimensions	Fully deployed: 58.4 × 15.7 m (192 × 52 ft)
Power	200 kilowatts
Start of mission
Launch date	NET May 2015 – January 2016 Planned
Rocket	Delta IV Heavy Baseline (2005)
Launch site	Cape Canaveral SLC-37B
Jupiter orbiter
Orbital insertion	April 2021 Planned
Orbital departure	September 2025 Planned
Europa orbiter
Orbital insertion	September 2025 Planned
Transponders
Bandwidth	10-Mbit/s
TWTA power	4 x 250 kilowatts
Large Strategic Science Missions Planetary Science Division

The Jupiter Icy Moons Orbiter (JIMO) was a proposed NASA spacecraft designed to explore the icy moons of Jupiter. The main target was Europa, where an ocean of liquid water may harbor alien life. Ganymede and Callisto, which are now thought to also have liquid, salty oceans beneath their icy surfaces, were also targets of interest for the probe.