{"id":505,"date":"2016-02-17T08:10:00","date_gmt":"2016-02-17T07:10:00","guid":{"rendered":"https:\/\/kids.esa.int\/sentinel_satellite_launched\/"},"modified":"2026-10-08T00:28:59","modified_gmt":"2026-10-07T22:28:59","slug":"sentinel_satellite_launched","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/sentinel_satellite_launched\/","title":{"rendered":"Le satellite Sentinelle a \u00e9t\u00e9 lanc\u00e9 !"},"content":{"rendered":"<\/p>\n

Les \u00e9quipes scientifiques de l\u2019ESA ont annonc\u00e9 que le satellite Sentinelle 3 avait d\u00e9coll\u00e9 avec succ\u00e8s. Il \u00e9volue d\u00e9sormais en orbite autour de la Terre !<\/p>\n

Sentinelle 3 est le dernier d\u2019une flotte de satellites avanc\u00e9s dont la mission consiste \u00e0 \u00e9tudier les terres, les oc\u00e9ans et l\u2019atmosph\u00e8re de notre plan\u00e8te.<\/p>\n

\"\"<\/figure>\n

Le satellite a \u00e9t\u00e9 lanc\u00e9 dans l\u2019espace par une fus\u00e9e depuis Plessetsk, un port spatial situ\u00e9 en Russie. Le d\u00e9collage a eu lieu \u00e0 20h57 heure locale et, 92 minutes plus tard, les \u00e9quipes au sol ont \u00e9t\u00e9 ravies et soulag\u00e9es de recevoir les premiers signaux du satellite !<\/p>\n

La principale mission de Sentinelle 3 sera d\u00e9di\u00e9e \u00e0 la surveillance des oc\u00e9ans. Veiller sur ces \u00e9tendues d\u2019eau sal\u00e9e, qui recouvrent 70 % de la plan\u00e8te, nous permet de contr\u00f4ler la sant\u00e9 de la Terre. Le satellite contr\u00f4lera la temp\u00e9rature, la couleur et le niveau des oc\u00e9ans, mais aussi l\u2019\u00e9paisseur des glaces de mer. Les r\u00e9serves d\u2019eau de notre plan\u00e8te sont une ressource importante que nous devons prot\u00e9ger.<\/p>\n

Apr\u00e8s son lancement dans l\u2019espace, Sentinelle 3 va pouvoir entamer sa phase d\u2019orbite initiale : ses instruments de bord vont \u00eatre progressivement activ\u00e9s et les scientifiques de la mission vont s\u2019assurer que tout fonctionne correctement. La position du satellite sera \u00e9galement ajust\u00e9e avec soin. Cette phase d\u2019orbite initiale devrait durer environ trois jours. D\u2019autres tests seront ensuite effectu\u00e9s pour veiller \u00e0 ce que les donn\u00e9es collect\u00e9es par le satellite soient de la plus haute pr\u00e9cision. Une fois tous ces tests pass\u00e9s avec succ\u00e8s, la mission effective de Sentinelle 3 commencera dans cinq mois.<\/p>\n

Les donn\u00e9es collect\u00e9es par Sentinelle 3 seront partag\u00e9es gratuitement avec le monde entier. Comment utiliseriez-vous ces pr\u00e9cieuses donn\u00e9es transmises par satellite ?<\/p>\n

Fait int\u00e9ressant :<\/b> The full name of this satellite is Sentinel-3A. It has a twin, called Sentinel-3B, which will launch next year.<\/p>","protected":false},"excerpt":{"rendered":"

ESA scientists have announced that their Sentinel-3 satellite has successfully blasted off and is now in orbit around Earth! Sentinel-3 is the latest in a fleet of advanced satellites whose […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2016\/02\/sentinel_3_liftoff\/17876960-2-eng-GB\/Sentinel_3_liftoff.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2016\/02\/Sentinel_3_liftoff","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-505","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=505"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/505\/revisions"}],"predecessor-version":[{"id":4519,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/505\/revisions\/4519"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=505"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=505"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=505"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=505"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=505"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=505"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=505"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}