{"id":3995,"date":"2025-12-04T15:34:58","date_gmt":"2025-12-04T14:34:58","guid":{"rendered":"https:\/\/f6kmf.fr\/?p=3995"},"modified":"2025-12-04T15:34:59","modified_gmt":"2025-12-04T14:34:59","slug":"des-navigateurs-de-lespace-sollicitent-laide-des-radioamateurs","status":"publish","type":"post","link":"https:\/\/f6kmf.fr\/index.php\/2025\/12\/04\/des-navigateurs-de-lespace-sollicitent-laide-des-radioamateurs\/","title":{"rendered":"Des \u00ab navigateurs de l&rsquo;espace \u00bb sollicitent l&rsquo;aide des radioamateurs"},"content":{"rendered":"\n<p class=\"has-background\" style=\"background-color:#257bc21c\">Des \u00ab navigateurs de l&rsquo;espace \u00bb sollicitent l&rsquo;aide des radioamateurs pour t\u00e9l\u00e9charger des donn\u00e9es.<br>Le 02\/12\/2025 des satellites ont \u00e9t\u00e9 plac\u00e9s sur orbite depuis l&rsquo;ISS en utilisant le module KIBO (voir article pr\u00e9c\u00e9dent) le <strong>satellite CU-ALPHA<\/strong> (98462) embarque une voile qui sera d\u00e9ploy\u00e9e sous peu.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"867\" height=\"483\" src=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2025\/12\/image.png\" alt=\"\" class=\"wp-image-3996\" srcset=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2025\/12\/image.png 867w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2025\/12\/image-300x167.png 300w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2025\/12\/image-768x428.png 768w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2025\/12\/image-800x445.png 800w\" sizes=\"auto, (max-width: 867px) 100vw, 867px\" \/><\/figure>\n\n\n\n<p class=\"has-background\" style=\"background-color:#257bc217\">Un groupe d&rsquo;\u00e9tudiants de l&rsquo;Universit\u00e9 Cornell recherche des radioamateurs \u00e9quip\u00e9s de stations satellites pour les aider \u00e0 capter les signaux d&rsquo;une voile laser r\u00e9tror\u00e9fl\u00e9chissante dont le d\u00e9ploiement est pr\u00e9vu cette semaine. Actuellement fix\u00e9e \u00e0 un CubeSat 1U lanc\u00e9 mardi 2 d\u00e9cembre 2025 depuis la Station spatiale internationale, la voile se s\u00e9parera ensuite pour devenir un engin spatial autonome \u00e9quip\u00e9 de quatre mini-ordinateurs de bord \u00ab ChipSat \u00bb qui transmettront des donn\u00e9es de t\u00e9l\u00e9m\u00e9trie vers la Terre.<br><br>Il s&rsquo;agit du premier vol de leurs ChipSats, et ce sont ces donn\u00e9es que les \u00e9tudiants cherchent \u00e0 d\u00e9tecter, selon Joshua Umansky-Castro, doctorant et radioamateur (indicatif KD2WTQ). <br>L<strong>es ChipSats de la voile solaire transmettront des donn\u00e9es via le protocole num\u00e9rique LoRa\u00ae sur la fr\u00e9quence 437,400 MHz. La voile, rang\u00e9e \u00e0 l&rsquo;int\u00e9rieur du CubeSat, devrait \u00eatre d\u00e9ploy\u00e9e quelques jours apr\u00e8s son lancement \u2013 \u200b\u200bprovisoirement ce jeudi 4 d\u00e9cembre <\/strong>\u2013 et ne fonctionnera probablement pas de mani\u00e8re autonome pendant plus de 48 heures en raison de la r\u00e9sistance de l&rsquo;air qu&rsquo;elle g\u00e9n\u00e8re.<br><br>Des informations suppl\u00e9mentaires, y compris les param\u00e8tres LoRa et des liens vers une liste de r\u00e9cepteurs compatibles et le fichier de d\u00e9codage, peuvent \u00eatre trouv\u00e9es sur\u00a0\u00a0<a href=\"https:\/\/alphacubesat.cornell.edu\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>alphacubesat.cornell.edu<\/strong><\/a>\u00a0dans le\u00a0<a href=\"https:\/\/cornell.app.box.com\/s\/n4se5ku0ltjb1of2piagfz1y7xa92n47\" target=\"_blank\" rel=\"noreferrer noopener\">guide de la station terrestre ChipSat<\/a>\u00a0(docx).<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Space Holograms and Light Sails - Alpha CubeSat!\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/v1xQxAS3No4?start=15&#038;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-background\" style=\"background-color:#257bc217\">On esp\u00e8re que le ChipSat et sa voile solaire ouvriront la voie \u00e0 de futures missions autour du syst\u00e8me solaire, et un jour vers notre plus proche voisine stellaire, Alpha Centauri.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Des \u00ab navigateurs de l&rsquo;espace \u00bb sollicitent l&rsquo;aide des radioamateurs pour t\u00e9l\u00e9charger des donn\u00e9es.Le 02\/12\/2025 des satellites ont \u00e9t\u00e9 plac\u00e9s<\/p>\n","protected":false},"author":1,"featured_media":3996,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[8,75],"tags":[148,147,132],"class_list":["post-3995","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-satellites","category-telemetrie","tag-chipsats","tag-cu-alpha","tag-kibo"],"_links":{"self":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/3995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/comments?post=3995"}],"version-history":[{"count":1,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/3995\/revisions"}],"predecessor-version":[{"id":3997,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/3995\/revisions\/3997"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/media\/3996"}],"wp:attachment":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/media?parent=3995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/categories?post=3995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/tags?post=3995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}