{"id":157473,"date":"2021-12-06T17:57:36","date_gmt":"2021-12-06T17:57:36","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/deux-nouveaux-satellites-rejoignent-la-constellation-galileo\/"},"modified":"2021-12-06T17:57:36","modified_gmt":"2021-12-06T17:57:36","slug":"deux-nouveaux-satellites-rejoignent-la-constellation-galileo","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/deux-nouveaux-satellites-rejoignent-la-constellation-galileo\/","title":{"rendered":"Deux nouveaux satellites rejoignent la constellation Galileo"},"content":{"rendered":"

Ces deux sattelites viennent \u00e9largir ainsi la plus grande constellation europ\u00e9enne de satellites. Les 27e et 28e satellites Galileo ont rejoint les 26 satellites d\u00e9j\u00e0 en orbite, fournissant un service de positionnement, de navigation et de synchronisation horaire \u00e0 plus de 2,3 milliards d\u2019usagers dans le monde entier.<\/p>\n

Paul Verhoef, directeur de la navigation \u00e0 l\u2019ESA, commente : \u00ab Ce vol est le 11e lancement de satellites Galileo en dix ans : une d\u00e9cennie de travail acharn\u00e9 de la part des partenaires europ\u00e9ens du programme Galileo et de l\u2019industrie europ\u00e9enne, au cours de laquelle Galileo a d\u2019abord \u00e9t\u00e9 \u00e9tabli en tant que syst\u00e8me op\u00e9rationnel, avant de commencer \u00e0 fournir ses services initiaux en 2016. Ces nouveaux satellites augmentent la robustesse de la constellation, afin de mieux garantir le service fourni. \u00bb <\/p>\n

\"\"Le lanceur Soyouz VS-26, exploit\u00e9 par Arianespace et command\u00e9 par l\u2019ESA, s\u2019est envol\u00e9 avec les deux satellites de 715 kg chacun depuis la Guyane fran\u00e7aise le 5 d\u00e9cembre \u00e0 01 h 19 (M\u00e9tropole). Tous les \u00e9tages Soyouz ont fonctionn\u00e9 comme pr\u00e9vu, l\u2019\u00e9tage sup\u00e9rieur Fregat pla\u00e7ant les satellites en orbite \u00e0 23 525 km d\u2019altitude, environ 3 heures et 54 minutes apr\u00e8s l\u2019envol. <\/p>\n

Dans les prochaines semaines, des man\u0153uvres effectu\u00e9es \u00e0 l\u2019aide de propulseurs embarqu\u00e9s permettront de positionner les satellites sur leur orbite finale \u00e0 23 222 km d\u2019altitude. Dans le m\u00eame temps, leurs syst\u00e8mes embarqu\u00e9s seront progressivement v\u00e9rifi\u00e9s pour une utilisation op\u00e9rationnelle, ce qui correspond \u00e0 la phase de lancement et de mise en orbite initiale (Launch and Early Operations Phase \u2013 LEOP).<\/p>\n

\n

Les satellites lanc\u00e9s aujourd\u2019hui font partie des 12 satellites Galileo restants de la premi\u00e8re g\u00e9n\u00e9ration, qui sont d\u00e9j\u00e0 une version am\u00e9lior\u00e9e du design existant \u00e0 pleine capacit\u00e9 op\u00e9rationnelle. Chacun de ces satellites est fabriqu\u00e9 et soumis aux essais par OHB en Allemagne, avec des charges utiles de navigation provenant de Surrey Satellite Technology Ltd au Royaume-Uni, et il incorpore d\u2019autres \u00e9l\u00e9ments provenant de toute l\u2019Europe. <\/p>\n

Toute l’information sur ce lancement<\/a><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Apr\u00e8s quelques probl\u00e8mes avec une station de suivi du lancement, le 5 d\u00e9cembre, un lanceur Soyouz a envoy\u00e9 deux nouveaux satellites de navigation Galileo en orbite depuis le port spatial de l\u2019Europe en Guyane fran\u00e7aise.<\/p>\n","protected":false},"author":11,"featured_media":157474,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1143],"class_list":["post-157473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"Deux nouveaux satellites rejoignent la constellation Galileo ...<\/title>\n<meta name=\"description\" content=\"Apr\u00e8s quelques probl\u00e8mes avec une station de suivi du lancement, le 5 d\u00e9cembre, un lanceur Soyouz a envoy\u00e9 deux nouveaux satellites de navigation Galileo...\" \/>\n<meta name=\"robots\" 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