NASA and Katalyst Space Technologies announced Wednesday they are giving up on a robotic mission to rescue the Swift gamma-ray telescope before it falls out of orbit.<\/p>\n
The rescue satellite, named Link, launched July 3 on a journey to fly up to NASA\u2019s Neil Gehrels Swift Observatory, capture it with three robotic arms, and boost its orbit high enough to escape a looming reentry. Link is about the size of a refrigerator, with two power-generating solar arrays and three xenon-fueled electric thrusters to send Swift into a safer, higher orbit.<\/p>\n
Katalyst, the startup leading the Swift rescue effort, said Wednesday that \u201congoing attitude control issues\u201d will prevent the Link satellite from completing its rescue mission. The spacecraft is still alive, and Katalyst said it will make the most of Link\u2019s remaining capacity, which may still allow it to get near enough to Swift for a demonstration of the satellite\u2019s close-in navigation system.<\/p>\n
\u201cWhile the mission will not have the ending we originally intended, NASA and Katalyst are assessing what milestones remain ahead,\u201d Katalyst said in a statement. \u201cWe will continue working to extract technical and operational value from the spacecraft.\u201d<\/p>\n
It was a lot to ask<\/p>\n
The Swift rescue mission was always risky. NASA awarded Katalyst a $30 million contract less than a year ago to build and launch the Link satellite. NASA said Katalyst had to launch the rescue mission by this summer in order to reach Swift before it falls back into Earth\u2019s atmosphere and burns up.<\/p>\n
\u201cNASA should be willing to move quickly and take smart risks when the potential return is worth it, and that is exactly what we did with this mission,\u201d said NASA Administrator Jared Isaacman. \u201cThis is not the outcome we were working toward, but it does not change why this mission was worth attempting.\u201d<\/p>\n
NASA gave Katalyst a remarkably tight schedule. It usually takes several years to ready a first-of-its-kind satellite for launch. Katalyst did it in nine months. The timeline forced hard trade-offs, with the schedule driving engineers to tolerate technical risks they might not otherwise accept. Everything seemed to go well during the satellite\u2019s first few weeks in orbit.<\/p>\n
That changed in late July when the Link spacecraft suddenly spun out of control. Katalyst hasn\u2019t said what caused the problem, but two of the satellite\u2019s three reaction wheels, used for attitude control, stopped working. There were also issues with cold gas thrusters used for finer pointing control. That left the satellite\u2019s three low-impulse plasma thrusters as the only means of regaining control of Link\u2019s orientation as it zipped around the Earth at nearly 5 miles per second.<\/p>\n","protected":false},"excerpt":{"rendered":"NASA and Katalyst Space Technologies announced Wednesday they are giving up on a robotic mission to rescue the…\n","protected":false},"author":2,"featured_media":819492,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[79,193],"class_list":["post-819491","post","type-post","status-publish","format-standard","has-post-thumbnail","category-space","tag-science","tag-space"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/819491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=819491"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/819491\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/819492"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=819491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=819491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=819491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}