Jupiter spacecraft detects problem, turns off camera



Associated Press

A NASA spacecraft circling Jupiter has hit another snag.

The space agency said overnight that Juno detected a problem, went into safe mode and shut off its cameras and instruments hours before it was supposed to pass over Jupiter's dense cloud tops.

This undated artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter. NASA said Wednesday, Oct. 19, 2016, that the Juno spacecraft circling Jupiter went into safe mode, turning off its camera and instruments. The space agency said the Juno craft is healthy as engineers try to figure out what went wrong. (NASA via AP)

This undated artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter.

Source: Associated Press

Juno rebooted its onboard computer and can communicate with Earth, but its activities are limited until engineers diagnose what went wrong.

"It's too early to take a guess," but the issue isn't caused by the intense radiation belts surrounding Jupiter because the spacecraft was far away when it entered safe mode, said mission chief scientist Scott Bolton of the Southwest Research Institute in San Antonio.

It's the second setback in less than a week for the solar-powered Juno, which has been orbiting the giant planet since July on a $1.5 billion mission to explore its poles, atmosphere and interior.

Last week, mission managers decided to postpone an engine firing planned for today after a pair of valves in the spacecraft's propulsion system didn't work as expected.

NASA said the two problems weren't related.

Mars lander's fate unknown

The delay means Juno won't swing close again to Jupiter until December.

The spacecraft made its first close pass in August, beaming back pictures of Jupiter's stormy north pole, which appeared bluer than the rest of the planet.

Scientists continued to pore over close-up images from the first flyby, determining that Jupiter's magnetic fields and northern and southern lights were more powerful than expected.

The Juno mission was designed to fly closer to Jupiter than previous spacecraft, coming within 4000 km of the surface.

Some three dozen close passes are planned during the 20-month mission.

Over at Mars, scientists with the European Space Agency lost contact with an experimental lander that was supposed to touch down on the red planet.

The mother ship successfully slipped into orbit around Mars, but the fate of the lander was still unknown.

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