NASA’s Juno spacecraft completed fourth flyby over Jupiter

NASA’s Juno spacecraft completed its fourth perijove pass just 2,670 miles (4,300 kilometers) above the Jovian cloud tops on February 2nd. Despite previous problems, all eight instruments were available for this close science pass, and we’re already seeing some great images from this past weekend. At the time of closest approach (perijove), Juno was about 2,670 miles (4,300 km) above the planet’s cloud tops. All of Juno’s eight science instruments and the spacecraft’s JunoCam were operating during the flyby to collect data that is now being returned to Earth. The Juno science team continues to analyze returns from previous flybys. Revelations include that Jupiter’s magnetic fields and aurora are bigger and more powerful than originally thought and that the belts and zones that give the gas giant’s cloud top its distinctive look extend deep into the planet’s interior. Several papers with more in-depth results from Juno’s first three flybys are expected to be published within the next few months.Also, JunoCam, the first interplanetary outreach camera, is now being guided with the assistance from the public. Juno launched on Aug. 5, 2011, from Cape Canaveral, Florida, and arrived at Jupiter on July 4, 2016. During its mission of exploration, the orbiter soars low over the planet’s cloud tops — as close as about 2,600 miles (4,100 km). During these flybys, Juno is probing beneath the obscuring cloud cover of Jupiter and studying its auroras to learn more about the planet’s origins, structure, atmosphere and magnetosphere. Juno is currently in a 53-day orbit, and its next close flyby of Jupiter will occur on March 27, 2017.

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