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Spacecraft Mission Pages
Mariner 2 Pioneer & Voyager Voyager Galileo Cassini-Huygens
Rosetta Messenger Dawn New Horizons Juno
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Where is the Juno Spacecraft right now?

The app above shows the trajectory of the Juno Spacecraft and where it is right now. You can also wind the animation backwards in time to watch its launch and its flyby of the Earth before entering Jupiter Orbit in 2016. However with the mission now extended into 2025, the animation will be extended soon to show the additional 42 orbits.

Juno is now in orbit about Jupiter taking about 53 days to complete each orbit. It was originally intended that a rocket burn would be performed in October 2016 to bring the spacecraft into a tighter 14 day orbit. However the team have decided to remain in the less risky 53 day orbit until the end of the mission. This decision was taken after the spacecraft entered safe-mode during a close fly-by in early October, 2016. Analysis showed that two helium check valves operated much slower than expected leading to worries that the main engine may not operate as expected when commanded. Article

Dec, 2019: Juno Mission to extends into 2025.

The Juno mission which was to end in July 2021 will extend to September 2025. Another 42 orbits have been planned and the team are keeping thier fingers crossed that the spacecraft continues to survive the harsh conditions of living close to Jupiter. NASA Article.

Oct, 2019: Juno's Course correction to avoid the dark.

June, 2018: Juno's Mission Extended

NASA has approved an update to Juno’s science operations until July 2021. This provides for an additional 41 months in orbit around Jupiter and will enable Juno to achieve its primary science objectives.  Juno is in 53-day orbits rather than 14-day orbits as initially planned because of a concern about valves on the spacecraft’s fuel system. This longer orbit means that it will take more time to collect the needed science data. Article

March, 2018: Jupiter has permanent cyclones at its poles

Jupiters Pole in infrared

This composite image, derived from data collected by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA’s Juno mission to Jupiter, shows the central cyclone at the planet’s north pole and the eight cyclones that encircle it. Credits: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM. Full image and caption

The massive cyclones that surround Jupiter’s north and south poles are enduring atmospheric features and unlike anything else encountered in our solar system. Article


Jupiter's Great Red Spot - July 10, 2017

Jupiter's great red spot

This enhanced-color image of Jupiter’s Great Red Spot was created by citizen scientist Gerald Eichstädt using data from the JunoCam imager on NASA’s Juno spacecraft.
The image is approximately illumination adjusted and strongly enhanced to draw viewers’ eyes to the iconic storm and the turbulence around it.
The image was taken on July 10, 2017 at 07:07 p.m. PDT (10:07 p.m. EDT), as the Juno spacecraft performed its 7th close flyby of Jupiter. At the time the image was taken, the spacecraft was about 6,130 miles (9,866 kilometres) from the tops of the clouds of the planet.

The original version of this image and other versions available here.


Science Data from the first low level orbits of Jupiter (25th May 2017)

This interesting seminar shows us the first results from Juno's mission. The main section of the video is the first 40 minutes and covers imagery of the planet, the composition of the atmosphere and the magnetic field. After that it's questions and answers.

Jupiter's South Pole - taken by Juno

Jupiters South pole as seen from Juno

NASA's Juno spacecraft soared directly over Jupiter's south pole when JunoCam acquired this image on Feb. 2, 2017, from an altitude of about 62,800 miles (101,000 kilometres) above the cloud tops. This image was processed by citizen scientist John Landino. This enhanced color version highlights the bright high clouds and numerous meandering oval storms. Credits: NASA/JPL-Caltech/SwRI/MSSS/John Landino

Jupiter Up Close

NASA's Juno spacecraft skimmed the upper wisps of Jupiter's atmosphere when JunoCam snapped this image on Feb. 2 at 5:13 a.m. PT (8:13 a.m. ET), from an altitude of about 9,000 miles (14,500 kilometers) above the giant planet's swirling cloud-tops. Credits: NASA/JPL-Caltech/SwRI/MSSS/Roman Tkachenko

Juno Spacecraft (Artists Impression)

Juno Flight Path

Juno was launched on the 5th of August, 2011, and entered into orbit about Jupiter on July 4th 2016 and was planned to study the planet until February 2018 when it was to de-orbited and crashed into Jupiter. However an extension to the mission means the spacecraft will survive until July 2021.

Juno's mission is intended to improve our understanding of the solar system's beginnings by revealing the origin and evolution of Jupiter. Specifically, Juno will…

What's so special about Juno?

Juno is only the second probe to orbit Jupiter (Galileo being the first) and gets in much closer to Jupiter. Its 14 day (originally - now 53 day) polar orbit is highly elliptical with the probe passing very close to the planet at its nearest approach, and skimming only 4300km above the planets cloud surface. This means that it passes through Jupiter’s intense magnetosphere which has radiation levels that would fry most electronics (or people if they could get there) very quickly. Juno's sensitive electronics are armoured within 1 cm thick titanium walls which will help to reduce the radiation significantly.

It only has to endure the radiation at closest approach (some 2-3 hours at a go) but will spend most of its orbit further out in a more benign environment. However some of its sensors are not expected to last the entire 37 orbit mission.

Juno Time-line

The major features of Juno's flightpath are listed here:

Date Event
August 2011 Launched
August 2012 Trajectory corrections
September 2012
October 2013 Earth flyby for speed boost (from 126,000 to 150,000 km/h (78,000 to 93,000 mph))
July 5, 2016, 02:50 Arrival at Jupiter and polar orbit insertion (1st orbit)
August 27, 2016, 13:44 Perijove (= point of closest approach to Jupiter in the spacecraft’s current orbit) 1
October 19, 2016 Perijove 2: Planned Period Reduction Manoeuvre, but the main engine's fuel pressurisation system did not operate as expected.
December 11, 2016, 17:04 Perijove 3
February 2, 2017, 12:57 Perijove 4
March 27, 2017, 08:52 Perijove 5
May 19, 2017, ˜06:00 Perijove 6
July 11, 2017 Perijove 7: Fly-over of the Great Red Spot
September 1, 2017 Perijove 8
October 24, 2017 Perijove 9
December 16, 2017 Perijove 10
February 7, 2018 Perijove 11
April 1, 2018 Perijove 12
May 24, 2018 Perijove 13
July 16, 2018 Perijove 14, end of primary mission.
... Extended Mission Orbits
July 30, 2021 Perijove 35, end of extended mission.
Spacecraft disposal in the form of a controlled de-orbit into Jupiter

More Information:

Juno Mission
Juno Wikipedia