Juno (spacecraft)
Juno is an unmanned NASA New Frontiers spacecraft. It studies the planet Jupiter from orbit. It is the first mission to an outer planet to use solar panels for power instead of a radioisotope thermoelectric generator. The spacecraft was launched on August 5, 2011 from the Cape Canaveral Air Force Station and entered a polar orbit of Jupiter on July 5, 2016. Scott Bolton is leading the mission.[6]
 Artist's rendering of the Juno spacecraft | |
| Mission type | Jupiter orbiter |
|---|---|
| Operator | NASA / JPL |
| COSPAR ID | 2011-040A |
| SATCAT no. | 37773 |
| Website |
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| Mission duration | Planned: 7 years Elapsed: 14 years, 10 months, 4 days Cruise: 4 years, 10 months, 29 days Science phase: 4 years (extended until September 2025) |
| Spacecraft properties | |
| Manufacturer | Lockheed Martin |
| Launch mass | 3,625 kg (7,992 lb)[1] |
| Dry mass | 1,593 kg (3,512 lb)[2] |
| Dimensions | 20.1 × 4.6 m (66 × 15 ft)[2] |
| Power | 14 kW at Earth,[2] 435 W at Jupiter[1] 2 × 55-ampere-hour lithium-ion batteries[2] |
| Start of mission | |
| Launch date | August 5, 2011, 16:25 UTC |
| Rocket | Atlas V 551 (AV-029) |
| Launch site | Cape Canaveral SLC-41 |
| Contractor | United Launch Alliance |
| Flyby of Earth | |
| Closest approach | October 9, 2013 |
| Distance | 559 km (347 mi) |
| Jupiter orbiter | |
| Orbital insertion | July 5, 2016, 03:53 UTC[3] 9 years, 11 months, 4 days ago |
| Orbits | 37 (planned)[4][5] |
| Orbit parameters | |
| Perijove | 4,200 km (2,600 mi) altitude 75,600 km (47,000 mi) radius |
| Apojove | 8.1 million km (5.0 million mi) |
| Inclination | 90 degrees (polar orbit) |
 Juno mission insignia | |
Juno's main goal is to understand the origin and evolution of Jupiter.[6][7][8][9] Juno will also study the planet's atmospheric composition, gravity field, magnetic field, and polar magnetosphere.[7][9][10]
Juno (spacecraft) Media
Juno in launch configuration
Juno awaiting its launch in 2011
Juno's elliptical orbit and the Jovian radiation belts
Animation of Juno's trajectory around Jupiter from June 1, 2016, to October 1, 2028 Juno · Jupiter
Ganymede, photographed on 7 June 2021 by Juno during its extended mission
Jupiter imaged using the VISIR instrument on the Very Large Telescope, 2016. These observations helped to plan Juno's mission.
illustration of a Juno instrument
Jovian Infrared Auroral Mapper
Magnetometer
An Atlas V rocket lofted the Juno spacecraft toward Jupiter from Space Launch Complex-41. The 4-ton Juno spacecraft will take five years to reach Jupiter on a mission to study its structure and decipher its history.
PIA23807-PlanetJupiter-FlyOver-Animation-20200602
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References
- ↑ 1.0 1.1 Juno Mission to Jupiter. NASA FACTS (April 2009)NASA. p. 1. Retrieved April 5, 2011.
- ↑ 2.0 2.1 2.2 2.3 Jupiter Orbit Insertion Press Kit (2016)NASA. Retrieved July 7, 2016.
- ↑ Foust, Jeff (July 5, 2016). "Juno enters orbit around Jupiter". Space News. http://spacenews.com/juno-enters-orbit-around-jupiter/. Retrieved August 25, 2016.
- ↑ Chang, Kenneth (July 5, 2016). "NASA's Juno Spacecraft Enters Jupiter's Orbit". The New York Times. https://www.nytimes.com/2016/07/05/science/juno-enters-jupiters-orbit-capping-5-year-voyage.html. Retrieved July 5, 2016.
- ↑ Greicius, Tony. Juno – Mission Overview. NASA (September 21, 2015). Retrieved October 2, 2015.
- ↑ 6.0 6.1 Sutherland, Paul. Sky at Night Magazine (75) (August 2011)BBC Magazines Bristol. p. 37-42.
- ↑ 7.0 7.1 Juno Science Objectives (2010-05-10). Retrieved 2011-07-29.
- ↑ Dodge, Randy. Key and Driving Requirements for the Juno Payload Suite of InstrumentsAmerican Institute of Aeronautics and Astronautics. Retrieved 2011-07-30.
- ↑ 9.0 9.1 Mission Overview (2010-01-28)NASA. Retrieved 2011-07-21.
- ↑ Juno Mission to JupiterNASA. Retrieved 2011-07-21.
Other websites
- Nasa's mission to Jupiter (2011-07-28)The Telegraph. Retrieved 2011-08-11.
