{"id":825,"date":"2004-12-02T15:50:00","date_gmt":"2004-12-02T14:50:00","guid":{"rendered":"https:\/\/kids.esa.int\/ground_stations\/"},"modified":"2026-10-08T00:32:42","modified_gmt":"2026-10-07T22:32:42","slug":"ground_stations","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/ground_stations\/","title":{"rendered":"Les stations sol"},"content":{"rendered":"
\n

L\u2019ESOC, le Centre europ\u00e9en d\u2019op\u00e9rations spatiales est reli\u00e9 \u00e0 un r\u00e9seau mondial de stations au sol.<\/p>\n<\/div>\n

Apr\u00e8s un lancement, les donn\u00e9es du satellite sont transmises \u00e0 ces stations sol puis \u00e0 l\u2019ESOC. Ces informations servent \u00e0 calculer l\u2019orbite et \u00e0 v\u00e9rifier la bonne marche du satellite, 24 heures sur 24 et 7 jours sur 7.<\/p>\n

Ce r\u00e9seau comporte un certain nombre de stations en Australie et en Europe, dont Kiruna en Su\u00e8de, Redu en Belgique et Villafranca et Cebreros en Espagne.<\/p>\n

D'autres stations de plus petite taille ont \u00e9t\u00e9 construites dans d'autres r\u00e9gions du monde, notamment \u00e0 Kourou, le port spatial europ\u00e9en situ\u00e9 en Am\u00e9rique du Sud, et sur l'\u00eele de Santa Maria, au Portugal. Elles sont principalement utilis\u00e9es pendant le lancement et les premi\u00e8res phases d'une mission.<\/p>\n

En 2003, une nouvelle antenne de 35m a \u00e9t\u00e9 construite \u00e0 New Norcia, pr\u00e8s de Perth, en Australie. Cette parabole g\u00e9ante qui p\u00e8se 120 tonnes a \u00e9t\u00e9 con\u00e7ue pour les communications avec les missions spatiales lointaines comme celles de Rosetta et Mars Express. Sa surface est extr\u00eamement lisse, sans relief sup\u00e9rieur \u00e0 0,3 mm. En 2005, une antenne du m\u00eame type a \u00e9t\u00e9 construite \u00e0 Cebreros en Espagne, et une nouvelle sera compl\u00e9t\u00e9e en 2012 \u00e0 Malarg\u00fce en Argentine.<\/p>\n

Les stations au sol sont con\u00e7ues pour fonctionner \u00e0 plusieurs radiofr\u00e9quences, comme celles utilis\u00e9es par les t\u00e9l\u00e9phones cellulaires. Leur sensibilit\u00e9 est telle qu\u2019elles peuvent enregistrer des signaux dont la puissance n\u2019exc\u00e8de pas celle d\u2019une ampoule domestique, \u00e9mis par un vaisseau spatial \u00e0 des millions de kilom\u00e8tres.<\/p>","protected":false},"excerpt":{"rendered":"

The European Space Operations Centre (ESOC) is linked to a worldwide network of ground stations. After a launch, data from the satellite is sent to these ground stations and then […]<\/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\/2003\/02\/australia_-_esa_deep_space_ground_station2\/17873741-2-eng-GB\/Australia_-_ESA_deep_space_ground_station.jpg","esa_banner_description":"Australia - ESA deep space ground station","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/02\/Australia_-_ESA_deep_space_ground_station2","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":[10,65,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-825","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/825","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=825"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/825\/revisions"}],"predecessor-version":[{"id":1968,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/825\/revisions\/1968"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=825"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=825"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=825"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=825"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=825"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=825"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=825"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}