{"id":852,"date":"2004-12-03T10:51:00","date_gmt":"2004-12-03T09:51:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellite_navigation\/"},"modified":"2026-10-08T00:33:00","modified_gmt":"2026-10-07T22:33:00","slug":"satellite_navigation","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/satellite_navigation\/","title":{"rendered":"Satellittnavigasjon"},"content":{"rendered":"<div class=\"lede\">\n<p>For lenge siden fant de som seilte p\u00e5 havet veien ved \u00e5 studere solens, m\u00e5nens og stjernenes posisjoner. Rundt \u00e5r 1300 gjorde innf\u00f8ringen av kompasset livet litt enklere for disse navigat\u00f8rene.<\/p>\n<\/div>\n<p>I dag har romteknologien gjort det umulig for noen \u00e5 g\u00e5 seg vill. Enhver person, bil, skip eller fly som er utstyrt med et satellittnavigasjonssystem, kan fastsl\u00e5 sin posisjon med en n\u00f8yaktighet p\u00e5 15 til 20 meter.<\/p>\n<p>Satellittnavigasjon bygger p\u00e5 at en mottaker beregner sin posisjon ved hjelp av signaler som sendes ut fra minst fire satellitter.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"389\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/11\/GPS2\" 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\/2001\/11\/gps2\/17865564-3-eng-GB\/GPS.jpg\" alt=\"GPS\"><figcaption>GPS<\/figcaption><\/figure>\n<p>Systemet vi i dag bruker i hverdagen, ble opprinnelig utviklet av milit\u00e6re \u00e5rsaker. Mellom 1960 og 1968 skj\u00f8t det amerikanske milit\u00e6ret opp 23 navigasjonssatellitter for \u00e5 st\u00f8tte navigasjonen til Polaris-ub\u00e5tene.<\/p>\n<p>Disse utviklet seg etter hvert til Global Positioning System (GPS). Et lignende system, kalt Glonass, ble innf\u00f8rt av det russiske milit\u00e6ret. Begge disse systemene er n\u00e5 tilgjengelige b\u00e5de for sivil og milit\u00e6r bruk. Dette er grunnen til at Europa \u00f8nsket \u00e5 ha sitt eget, garanterte system.<\/p>\n<p>Europa har n\u00e5 innf\u00f8rt et system kalt EGNOS, som forbedrer n\u00f8yaktigheten til GPS-systemet. ESA og Det europeiske fellesskapet utvikler ogs\u00e5 i fellesskap Europas eget sivile (ikke-milit\u00e6re) navigasjonssystem. Systemet, som heter Galileo, vil bli det f\u00f8rste fullstendig sivile systemet for global navigasjon.<\/p>","protected":false},"excerpt":{"rendered":"<p>Long ago, people who sailed the sea found their way by studying the positions of the Sun, Moon and stars. Then, around 1300, the introduction of the compass made life [&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\/2001\/01\/galileo2\/17866193-3-eng-GB\/Galileo.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/01\/Galileo2","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":[10,54,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-852","post","type-post","status-publish","format-standard","hentry","category-learn","category-space-technologies-on-earth","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=852"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/852\/revisions"}],"predecessor-version":[{"id":4707,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/852\/revisions\/4707"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=852"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=852"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=852"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=852"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=852"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=852"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=852"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}