Sentences with phrase «reaction wheels failed»

In July 2012, one of Kepler's four reaction wheels failed; then in May 2013, a second one failed, leaving just two that were operational.

This mission collected about four years of data before two of its reaction wheels failed, crippling the spacecraft.

Kepler, which was initially expected to last until 2016, encountered a serious anomaly when the second of its four reaction wheels failed in May 2013, disabling the spacecraft to collect data.

In May 2013, the second of four reaction wheels failed, making it impossible to accurately position the spacecraft for observations.

Not exact matches

By May, two of the four reaction wheels that precisely point the telescope had failed, leaving it too unstable to detect exoplanets around bright stars.

Kepler was approved far beyond its original mission length and was operating well until May 2013, when a second of its four reaction wheels or gyroscopes failed.

She said that a reaction wheel and some of the probe's thrusters failed during the mission, which would have meant the spacecraft couldn't point its instruments to collect data, or communicate with Earth through pointing its antenna at the planet.

These results mark the end of the first official Kepler mission, which was cut short four years ago by a second failed reaction wheel that stabilized the telescope.