{"id":853,"date":"2004-12-02T07:58:00","date_gmt":"2004-12-02T06:58:00","guid":{"rendered":"https:\/\/kids.esa.int\/olympus_and_artemis\/"},"modified":"2026-10-08T00:33:00","modified_gmt":"2026-10-07T22:33:00","slug":"olympus_and_artemis","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/olympus_and_artemis\/","title":{"rendered":"Olympus og Artemis"},"content":{"rendered":"<div class=\"lede\">\n<p>ESA har arbeidet med satellittkommunikasjon siden 1970-tallet. Allerede i 1980 ble organisasjonens \u00abOrbital Test Satellite\u00bb brukt til videokoblinger mellom grupper i Tyskland og Storbritannia. Den videreformidlet ogs\u00e5 n\u00f8dtelefoner etter at en brann \u00f8dela bakkesystemet i Lyon.<\/p>\n<\/div>\n<p>Kort tid etter f\u00f8rte en satellitt ved navn Marecs til et gjennombrudd innen mobilkommunikasjon. I stedet for \u00e5 bruke up\u00e5litelig kortb\u00f8lgeradio kunne folk n\u00e5 bruke satellittelefoner til \u00e5 ringe fra skip til land.<\/p>\n<p>I slutten av 1980-\u00e5rene og 1990-\u00e5rene ble fire ECS-satellitter skutt opp. Hver av dem hadde kapasitet til \u00e5 h\u00e5ndtere 12 000 telefonforbindelser og 10 TV-kanaler over hele Europa.<\/p>\n<p>Fremskritt innen direkte kringkasting fra satellitt til takparaboler kom med ESAs satellitt Olympus i 1989. Olympus ble ogs\u00e5 brukt til den f\u00f8rste dataoverf\u00f8ringen mellom to satellitter.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2925\" data-credit=\"ESA - J. Huart\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/09\/Artemis2\" 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\/2000\/09\/artemis2\/17865972-3-eng-GB\/Artemis.jpg\" alt=\"Artemis\"><figcaption>Artemis<\/figcaption><\/figure>\n<p>De siste fremskrittene stammer fra en satellitt ved navn Artemis. Den 30. november 2001 ble den brukt til den aller f\u00f8rste overf\u00f8ringen av bilder ved hjelp av en laserstr\u00e5le. Perfekte bilder ble sendt fra satellitten SPOT 4, som kretser i en bane p\u00e5 832 km, til Artemis, 31 000 km over jorden.<\/p>\n<p>I dag brukes Artemis til \u00e5 overf\u00f8re bilder og enorme datamengder fra Envisat til ESA-senteret i n\u00e6rheten av Roma.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA has been working on satellite communications since the 1970s. As early as 1980, its Orbital Test Satellite was being used for video links between groups in Germany and the [&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\/2000\/09\/artist_s_impression_of_olympus_in_orbit2\/17865897-3-eng-GB\/Artist_s_impression_of_Olympus_in_orbit.gif","esa_banner_description":"Artist's impression of Olympus in orbit","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/09\/Artist_s_impression_of_Olympus_in_orbit2","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-853","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\/853","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=853"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/853\/revisions"}],"predecessor-version":[{"id":4708,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/853\/revisions\/4708"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=853"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=853"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=853"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=853"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=853"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=853"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=853"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}