{"id":650,"date":"2013-05-13T08:00:00","date_gmt":"2013-05-13T06:00:00","guid":{"rendered":"https:\/\/kids.esa.int\/lift_off_for_vega_and_proba-v\/"},"modified":"2026-10-08T00:30:43","modified_gmt":"2026-10-07T22:30:43","slug":"lift_off_for_vega_and_proba-v","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/lift_off_for_vega_and_proba-v\/","title":{"rendered":"D\u00e9collage pour Vega et Proba-V"},"content":{"rendered":"
\n

Le tout nouveau lanceur de l'ESA, Vega, a effectu\u00e9 avec succ\u00e8s son deuxi\u00e8me vol depuis le port spatial europ\u00e9en de Kourou, en Guyane fran\u00e7aise. V\u00e9ga a illumin\u00e9 la nuit lors de son d\u00e9collage, le 7 mai \u00e0 02 h 06 GMT, dans le cadre d'une mission complexe visant \u00e0 placer trois satellites \u2013 dont Proba-V de l'ESA \u2013 en orbite terrestre basse.<\/p>\n<\/div>\n

Les trois \u00e9tages \u00e0 combustible solide de la fus\u00e9e ont parfaitement fonctionn\u00e9. Le satellite Proba-V a \u00e9t\u00e9 plac\u00e9 en orbite circulaire \u00e0 une altitude de 820 km au-dessus des c\u00f4tes occidentales de l'Australie, quelque 55 minutes apr\u00e8s le d\u00e9collage. Le contr\u00f4le du satellite a \u00e9t\u00e9 confi\u00e9 au centre ESA de Redu, en Belgique, lequel supervisera le \u00ab bilan sant\u00e9 \u00bb et la proc\u00e9dure de tests avant le d\u00e9marrage des op\u00e9rations.<\/p>\n

Proba-V pesait pr\u00e8s de 140 kg au moment de son lancement. Il est le troisi\u00e8me de la s\u00e9rie d'engins spatiaux Proba de l'ESA a avoir \u00e9t\u00e9 lanc\u00e9 en vue de tester les nouvelles technologies spatiales. La principale t\u00e2che de Proba-V consiste \u00e0 cartographier la v\u00e9g\u00e9tation mondiale.<\/p>\n

Les donn\u00e9es sur la v\u00e9g\u00e9tation r\u00e9v\u00e8lent aux scientifiques les diff\u00e9rents types de couverture du sol et d'esp\u00e8ces de plantes, ainsi que les cultures. Elles fournissent ainsi des indications sur leur \u00e9tat de sant\u00e9 et permettent de d\u00e9tecter les \u00e9tendues d'eau et les zones de v\u00e9g\u00e9tation br\u00fbl\u00e9es.<\/p>\n

Ces donn\u00e9es serviront \u00e0 \u00e9valuer l'impact du climat sur la v\u00e9g\u00e9tation, \u00e0 g\u00e9rer les ressources d'eaux de surface, \u00e0 surveiller l'agriculture et \u00e0 \u00e9valuer la s\u00e9curit\u00e9 alimentaire sur toute la plan\u00e8te, en particulier dans les zones les moins d\u00e9velopp\u00e9es. Bien qu'\u00e0 peine plus gros qu'un lave-linge, ce satellite fournira tous les deux jours des images nettes de la vie des plantes sur Terre.<\/p>","protected":false},"excerpt":{"rendered":"

ESA’s newest launcher, Vega, has completed a successful second flight from Europe\u2019s spaceport in Kourou, French Guiana. Vega lit up the darkness as it lifted off at 02:06 GMT on […]<\/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\/2013\/05\/proba-v_satellite\/17876554-2-eng-GB\/Proba-V_satellite.jpg","esa_banner_description":"Proba-V satellite","esa_banner_credit":"ESA-P.Carril","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2013\/05\/Proba-V_satellite","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-650","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\/650","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=650"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/650\/revisions"}],"predecessor-version":[{"id":1793,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/650\/revisions\/1793"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=650"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=650"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=650"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=650"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=650"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=650"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=650"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}