{"id":772,"date":"2011-10-26T11:20:00","date_gmt":"2011-10-26T09:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/liftoff_for_galileo_constellation\/"},"modified":"2026-10-08T00:32:05","modified_gmt":"2026-10-07T22:32:05","slug":"liftoff_for_galileo_constellation","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/liftoff_for_galileo_constellation\/","title":{"rendered":"Galileo-satelliittij\u00e4rjestelm\u00e4n laukaisu"},"content":{"rendered":"<div class=\"lede\">\n<p>Uusi aikakausi alkoi 21. lokakuuta, kun Euroopan Galileo-maailmanlaajuisen satelliittinavigointij\u00e4rjestelm\u00e4n ensimm\u00e4iset kaksi toimintakuntoista avaruusaluksia laukaistiin onnistuneesti. T\u00e4m\u00e4 n\u00e4ytt\u00e4v\u00e4 ja tulinen laukaisu oli my\u00f6s merkkitapahtuma Euroopan avaruustoiminnalle. Se oli ensimm\u00e4inen kerta, kun ven\u00e4l\u00e4isvalmisteinen Sojuz-raketti laukaistiin uudelta, t\u00e4t\u00e4 tarkoitusta varten rakennetulta laukaisualustalta Kouroussa Ranskan Guayanassa.<\/p>\n<\/div>\n<p>T\u00e4h\u00e4n asti kaikki Sojuz-raketit on laukaistu Baikonurista Kazakstanista tai Plesetskist\u00e4 Ven\u00e4j\u00e4lt\u00e4. Laukaisemalla sen kuitenkin Euroopan avaruuskeskuksesta, l\u00e4hell\u00e4 p\u00e4iv\u00e4ntasaajaa, eurooppalainen Sojuz-raketti pystyy kuljettamaan jopa 3 tonnia \u2018geostationaariselle siirtoradalle\u2019. Vertailun vuoksi Baikonurista laukaistujen rakettien kantavuus on vain 1,7 tonnia. Suorituskyvyn parantuminen johtuu siit\u00e4, ett\u00e4 maapallon nopea py\u00f6riminen p\u00e4iv\u00e4ntasaajalla lis\u00e4\u00e4 raketin l\u00e4ht\u00f6nopeutta.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3000\" data-credit=\"ESA -. P. Carril, 2011\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/10\/IOV_satellites_ejected_from_Fregat_upper_stage2\" 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\/2011\/10\/iov_satellites_ejected_from_fregat_upper_stage2\/17910307-2-eng-GB\/IOV_satellites_ejected_from_Fregat_upper_stage.jpg\" alt=\"IOV satellites  ejected from Fregat upper stage\"><figcaption>IOV-satelliitit laukaistiin Fregat-yl\u00e4vaiheesta<\/figcaption><\/figure>\n<p>Arianespacen operoima Sojuz VS01 -lento alkoi kello 10.30 GMT (12.30 CEST), ja kaikki Sojuz-raketin vaiheet toimivat moitteettomasti. Fregat-MT-yl\u00e4vaihe vapautti Galileo-IOV-satelliitit (In-Orbit Validation) niiden kohdekiertoradoille 23 222 km:n korkeudelle 3 tuntia 49 minuuttia laukaisun j\u00e4lkeen.<\/p>\n<p>Teht\u00e4v\u00e4n alkuvaiheessa Galileo-IOV-satelliitteja ohjataan Toulousesta, Ranskasta k\u00e4sin ESA:n ja Ranskan avaruusviraston (CNES) yhteisen tiimin toimesta. Lopulta satelliitit luovutetaan SpaceOpalille, joka on Saksan ilmailu- ja avaruustutkimuskeskuksen (DLR) ja italialaisen Telespazion yhteisyritys, 90 p\u00e4iv\u00e4n mittaista testausjaksoa varten. Ensi vuonna niihin liittyy toinen IOV-satelliittipari. Kun satelliittij\u00e4rjestelm\u00e4 on valmis, se koostuu 30 satelliitista, jotka kiert\u00e4v\u00e4t kolmella eri kiertoradalla.<\/p>","protected":false},"excerpt":{"rendered":"<p>A new era began on 21 October with the successful launch of the first pair of operational spacecraft in Europe\u2019s Galileo global navigation satellite system. The spectacular, fiery lift-off was [&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\/2011\/10\/liftoff_of_soyuz_flight_vs019\/18247216-2-eng-GB\/Liftoff_of_Soyuz_flight_VS01.jpg","esa_banner_description":"Liftoff of Soyuz flight VS01","esa_banner_credit":"ESA\/CNES\/ARIANESPACE - S. Corvaja, 2011","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/10\/Liftoff_of_Soyuz_flight_VS019","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":[1],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-772","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=772"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/772\/revisions"}],"predecessor-version":[{"id":4674,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/772\/revisions\/4674"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=772"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=772"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=772"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=772"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=772"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=772"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=772"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}