{"id":719,"date":"2012-01-12T12:27:00","date_gmt":"2012-01-12T11:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_s_swarm_prepares_for_flight\/"},"modified":"2026-10-08T00:31:31","modified_gmt":"2026-10-07T22:31:31","slug":"esa_s_swarm_prepares_for_flight","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/esa_s_swarm_prepares_for_flight\/","title":{"rendered":"ESAs Swarm f\u00f6rbereder sig f\u00f6r uppskjutning"},"content":{"rendered":"<div class=\"lede\">\n<p>Det finns ett osynligt magnetf\u00e4lt runt omkring oss. \u00c4ven om vi normalt sett inte m\u00e4rker det \u00e4r jordens magnetf\u00e4lt mycket viktigt, eftersom det skyddar oss fr\u00e5n farliga solstormar och rymdstr\u00e5lning. Utan det skulle det inte finnas n\u00e5got liv p\u00e5 v\u00e5r planet. F\u00f6r att kunna m\u00e4ta denna magnetiska kraft med st\u00f6rre noggrannhet \u00e4n n\u00e5gonsin tidigare f\u00f6rbereder ESA sig f\u00f6r att skicka upp en speciell rymdmission i omloppsbana, kallad Swarm.<\/p>\n<\/div>\n<p>Swarm-konceptet best\u00e5r av en konstellation av tre satelliter i tre olika pol\u00e4ra banor p\u00e5 h\u00f6jder mellan 400 och 550 km. Varje satellit kommer att tillhandah\u00e5lla h\u00f6gprecisa och h\u00f6guppl\u00f6sta m\u00e4tningar av magnetf\u00e4ltets styrka och riktning. M\u00e5nga av de k\u00e4nsliga instrumenten kommer att monteras p\u00e5 en 4 meter l\u00e5ng bom f\u00f6r att begr\u00e4nsa st\u00f6rningar fr\u00e5n rymdfarkostens elektriska system.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1238\" data-credit=\"ESA\u2013P. Carril\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/10\/Swarm_constellation2\" 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\/swarm_constellation2\/17891243-2-eng-GB\/Swarm_constellation.jpg\" alt=\"Swarm constellation\"><figcaption>Sv\u00e4rmkonstellation<\/figcaption><\/figure>\n<p>Man tror att magnetf\u00e4ltet skapas av virvlande v\u00e4tska i jordens j\u00e4rnrika yttre k\u00e4rna, men vi f\u00f6rst\u00e5r fortfarande inte helt hur det bildas och hur det f\u00f6r\u00e4ndras \u00f6ver tid. Till exempel f\u00f6rskjuts de magnetiska nord- och sydpolernas l\u00e4gen p\u00e5 jordytan st\u00e4ndigt. \u00c4ven f\u00e4ltets styrka f\u00f6r\u00e4ndras. Ibland byter polerna faktiskt plats, s\u00e5 att den nuvarande nordpolen blir sydpolen. Vid s\u00e5dana tillf\u00e4llen skulle en magnetkompass peka s\u00f6derut ist\u00e4llet f\u00f6r norrut! Forskarna hoppas att Swarm-uppdraget ska kunna l\u00f6sa dessa och m\u00e5nga andra magnetiska mysterier.<\/p>\n<p>F\u00f6r att s\u00e4kerst\u00e4lla att m\u00e4tningarna blir s\u00e5 exakta som m\u00f6jligt har alla satelliterna genomg\u00e5tt omfattande tester. En del av dessa genomf\u00f6rdes i en \u2018magnetiskt ren\u2019 milj\u00f6 \u2013 ett rum med tr\u00e4golv, bel\u00e4get djupt inne i en tysk skog, l\u00e5ngt fr\u00e5n andra byggnader. N\u00e4r testprogrammet \u00e4r avslutat kommer Swarm-trion att transporteras till den ryska rymdbasen i Plesetsk f\u00f6r att senare i \u00e5r skjutas upp med en Rockot-raket.<\/p>","protected":false},"excerpt":{"rendered":"<p>There is an invisible magnetic field all around us. Although we don\u2019t normally notice it, the Earth\u2019s magnetic field is very important as it protects us from dangerous solar storms [&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\/2009\/03\/swarm_constellation2\/17887358-2-eng-GB\/Swarm_constellation.jpg","esa_banner_description":"Swarm constellation","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/03\/Swarm_constellation2","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-719","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\/sv\/wp-json\/wp\/v2\/posts\/719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=719"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/719\/revisions"}],"predecessor-version":[{"id":4647,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/719\/revisions\/4647"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=719"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=719"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=719"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=719"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=719"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=719"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=719"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}