{"id":2687,"date":"2023-11-09T15:21:27","date_gmt":"2023-11-09T14:21:27","guid":{"rendered":"http:\/\/f6kmf.fr\/?p=2687"},"modified":"2023-11-10T09:07:02","modified_gmt":"2023-11-10T08:07:02","slug":"les-oiseaux-ne-se-cachent-plus-pour-mourir","status":"publish","type":"post","link":"https:\/\/f6kmf.fr\/index.php\/2023\/11\/09\/les-oiseaux-ne-se-cachent-plus-pour-mourir\/","title":{"rendered":"Les oiseaux (ne) se cachent (plus) pour mourir."},"content":{"rendered":"\n<p style=\"text-align:right\"><strong>Par Gilles F1EFW<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"511\" height=\"506\" src=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image.png\" alt=\"\" class=\"wp-image-2688\" srcset=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image.png 511w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image-150x150.png 150w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image-300x297.png 300w\" sizes=\"auto, (max-width: 511px) 100vw, 511px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Delfi-C3  (DO64) va bient\u00f4t la rentrer dans l\u2019Atmosph\u00e8re<\/h4>\n\n\n\n<p class=\"has-background has-pale-cyan-blue-background-color\">Delfi-C3 est un satellite CubeSat construit par des \u00e9tudiants de l\u2019Universit\u00e9 de technologie de Delft aux Pays-Bas. Il a \u00e9t\u00e9 lanc\u00e9 le 28 avril 2008.<br>Apr\u00e8s <strong>plus de 15 ans en orbite<\/strong>, l\u2019\u00e9quipe pr\u00e9voit que la rentr\u00e9e atmosph\u00e9rique aura lieu aux alentours du <strong>12 novembre 2023.<\/strong> La date de rentr\u00e9e peut varier en fonction de l\u2019activit\u00e9 solaire, ce qui est difficile \u00e0 pr\u00e9dire avec pr\u00e9cision.<br>Wouter PA3WEG  : \u00ab Nous aimerions demander \u00e0 tous les op\u00e9rateurs de radio amateur \/ SWL \/ passionn\u00e9s de satellites du monde entier d\u2019\u00e9couter la liaison descendante de t\u00e9l\u00e9m\u00e9trie de Delfi-C3 sur 145,867 MHz, \u00e0 1200 bauds AX.25 BPSK. Nous remettrons un certificat d\u2019attribution \u00e0 la personne soumettant la derni\u00e8re trame de t\u00e9l\u00e9m\u00e9trie de Delfi-C3. \u00bb<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.jarl.org\/Japanese\/7_Technical\/satellite\/fo29.gif\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">FO-99 lui aussi en fin de vie &#8230;<\/h4>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">Le satellite Radioamateur Japonais FO-99 a \u00e9t\u00e9 lanc\u00e9 avec succ\u00e8s <strong>le 18\u00a0Janvier\u00a02019.<\/strong><br>Il comprenait une balise de 100 mW, et un transpondeur de 1 watt.<br>Depuis plusieurs mois, son altitude chute inexorablement, il \u00e9tait \u00e0 200 km en d\u00e9but de mois et il devrait rentrer dans l&rsquo;atmosph\u00e8re dans les prochains jours.<br><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">CAS-4A et CAS-4B ne vont pas tr\u00e8s bien non plus  &#8230;.<\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"318\" height=\"262\" src=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image-1.png\" alt=\"\" class=\"wp-image-2689\" srcset=\"https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image-1.png 318w, https:\/\/f6kmf.fr\/wp-content\/uploads\/2023\/11\/image-1-300x247.png 300w\" sizes=\"auto, (max-width: 318px) 100vw, 318px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-background has-pale-cyan-blue-background-color\">Les microsatellites chinois CAS-4A et CAS-4B ont \u00e9t\u00e9 mis en orbite le <strong>15 juin 2017<\/strong>.<br>Ils orbitent \u00e0 524 km d&rsquo;altitude, et font le tour de la plan\u00e8te toutes les 95 minutes.<br> Ils poss\u00e8dent chacun une balise de t\u00e9l\u00e9m\u00e9trie et un transpondeur SSB, mais depuis plusieurs mois <strong>CAS-4A est inaudible et CAS-4B n&rsquo;est que rarement actif<\/strong>  (1 fois par semaine), leurs trajectoires ne sont plus corrig\u00e9es, ils vont \u00e9galement rentrer et \u00eatre pulv\u00e9ris\u00e9s dans l&rsquo;atmosph\u00e8re.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Que nous reste-il pour travailler (mais non, nous amuser &#8230;)<\/h4>\n\n\n\n<p class=\"has-background has-very-light-gray-background-color\">La s\u00e9rie des TEVEL (2,3,4,5,6 et 7) <br>Oscar 7, 73 (t\u00e9l\u00e9m\u00e9trie), 91 et 92 tr\u00e8s al\u00e9atoirement.<br>FO-99, IO-117, ISS-FM et ISS-DATA, JO-97, LilacSat-2<br>PO-101, QO-100, RS-44, SO-50<br>UVSQ-SAT et INSPIRE-SAT7 rarement mis \u00e0 disposition. <\/p>\n\n\n\n<p><br><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Par Gilles F1EFW Delfi-C3 (DO64) va bient\u00f4t la rentrer dans l\u2019Atmosph\u00e8re Delfi-C3 est un satellite CubeSat construit par des \u00e9tudiants<\/p>\n","protected":false},"author":4,"featured_media":2689,"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],"tags":[],"class_list":["post-2687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-satellites"],"_links":{"self":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/2687","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/comments?post=2687"}],"version-history":[{"count":2,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/2687\/revisions"}],"predecessor-version":[{"id":2697,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/posts\/2687\/revisions\/2697"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/media\/2689"}],"wp:attachment":[{"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/f6kmf.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}