ESA company blog
Three hours to save Integral spacecraft
On 22 September, around midday, ESA’s Integral spacecraft went into emergency Safe Mode. One of the spacecraft’s three active ‘reaction wheels’ had turned off without warning and stopped spinning, causing a ripple effect that meant the satellite itself began to rotate.
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On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Oct 19, 2021 | Three hours to save Integral spacecraft by jensgk | 376 | 41 |
