{"id":614,"date":"2012-10-17T11:12:00","date_gmt":"2012-10-17T09:12:00","guid":{"rendered":"https:\/\/kids.esa.int\/four_galileo_pathfinders_now_in_orbit\/"},"modified":"2026-10-08T00:30:18","modified_gmt":"2026-10-07T22:30:18","slug":"four_galileo_pathfinders_now_in_orbit","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/pt\/four_galileo_pathfinders_now_in_orbit\/","title":{"rendered":"Quatro sat\u00e9lites pioneiros do programa Galileo j\u00e1 se encontram em \u00f3rbita"},"content":{"rendered":"<div class=\"lede\">\n<p>No dia 12 de outubro, um foguet\u00e3o Soyuz descolou do centro espacial de Kourou, na Guiana Francesa, com duas naves espaciais Galileo. O terceiro e o quarto sat\u00e9lites do sistema global de navega\u00e7\u00e3o por sat\u00e9lite da Europa juntaram-se aos dois sat\u00e9lites que tinham sido lan\u00e7ados quase exatamente um ano antes. Estes dois novos sat\u00e9lites completam o \u2018grupo de teste\u2019 do programa Galileo.<\/p>\n<\/div>\n<p>O espetacular lan\u00e7amento do voo VS03 teve in\u00edcio \u00e0s 20h15 CEST. Todos os est\u00e1gios do foguet\u00e3o funcionaram conforme previsto e o est\u00e1gio superior colocou os sat\u00e9lites em \u00f3rbita a uma altitude de cerca de 23 200 km, 3 horas e 45 minutos ap\u00f3s a descolagem.<\/p>\n<p>Os dois sat\u00e9lites Galileo foram transportados lado a lado e, posteriormente, lan\u00e7ados em dire\u00e7\u00f5es opostas no ponto correto de inser\u00e7\u00e3o orbital. Ap\u00f3s as primeiras verifica\u00e7\u00f5es, ser\u00e3o entregues aos centros de controlo na Alemanha e na It\u00e1lia para serem submetidos a testes antes de entrarem em funcionamento.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1500\" data-credit=\"ESA \u2013 P. Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/10\/Four_Galileo_satellites3\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/10\/four_galileo_satellites3\/18246106-2-eng-GB\/Four_Galileo_satellites.jpg\" alt=\"Four Galileo satellites\"><figcaption>Quatro sat\u00e9lites Galileo<\/figcaption><\/figure>\n<p>Com quatro sat\u00e9lites id\u00eanticos agora em \u00f3rbita, a ESA poder\u00e1 demonstrar o desempenho do sistema Galileo antes da coloca\u00e7\u00e3o em \u00f3rbita dos restantes sat\u00e9lites. Em conjunto, estes quatro sat\u00e9lites constituem o n\u00famero m\u00ednimo necess\u00e1rio para determinar com precis\u00e3o uma localiza\u00e7\u00e3o na Terra.<\/p>\n<p>Estas naves espaciais pioneiras preparam o caminho para a implanta\u00e7\u00e3o total da constela\u00e7\u00e3o Galileo. Est\u00e1 previsto o lan\u00e7amento de mais 18 sat\u00e9lites at\u00e9 ao final de 2014, o que permitir\u00e1 o in\u00edcio dos servi\u00e7os de navega\u00e7\u00e3o em toda a Europa. No final, o Galileo ser\u00e1 composto por 30 sat\u00e9lites a orbitar em tr\u00eas \u00f3rbitas diferentes.<\/p>","protected":false},"excerpt":{"rendered":"<p>On 12 October, a Soyuz rocket lifted off from the Kourou spaceport in French Guiana with two Galileo spacecraft. The third and fourth satellites of Europe\u2019s global navigation satellite system [&hellip;]<\/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\/2012\/10\/soyuz_vs03_liftoff18\/18246550-2-eng-GB\/Soyuz_VS03_liftoff.jpg","esa_banner_description":"Soyuz VS03 liftoff","esa_banner_credit":"ESA\u2013S. 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