{"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\/cs\/olympus_and_artemis\/","title":{"rendered":"Olympus a Artemis"},"content":{"rendered":"
\n

ESA se zab\u00fdv\u00e1 satelitn\u00ed komunikac\u00ed ji\u017e od 70. let. Ji\u017e v roce 1980 se jej\u00ed satelit Orbital Test Satellite pou\u017e\u00edval k videop\u0159enos\u016fm mezi skupinami v N\u011bmecku a ve Velk\u00e9 Brit\u00e1nii. Slou\u017eil tak\u00e9 k p\u0159enosu nouzov\u00fdch telefonn\u00edch hovor\u016f pot\u00e9, co po\u017e\u00e1r zni\u010dil pozemn\u00ed syst\u00e9m v Lyonu.<\/p>\n<\/div>\n

Zanedlouho pot\u00e9 p\u0159inesla dru\u017eice s n\u00e1zvem Marecs pr\u016flom v oblasti mobiln\u00edch telekomunikac\u00ed. M\u00edsto nespolehliv\u00e9ho kr\u00e1tkovlnn\u00e9ho r\u00e1dia mohli lid\u00e9 vyu\u017e\u00edvat satelitn\u00ed telefony k vol\u00e1n\u00ed z lodi na pevninu.<\/p>\n

V druh\u00e9 polovin\u011b 80. let a v 90. letech byly vypu\u0161t\u011bny \u010dty\u0159i satelity ECS. Ka\u017ed\u00fd z nich dok\u00e1zal obsluhovat 12 000 telefonn\u00edch linek a 10 televizn\u00edch kan\u00e1l\u016f po cel\u00e9 Evrop\u011b.<\/p>\n

Pokrok v oblasti p\u0159\u00edm\u00e9ho vys\u00edl\u00e1n\u00ed ze satelitu do st\u0159e\u0161n\u00edch parabolick\u00fdch ant\u00e9n p\u0159inesl v roce 1989 satelit Olympus agentury ESA. Satelit Olympus byl rovn\u011b\u017e pou\u017eit k prvn\u00edmu p\u0159enosu dat mezi dv\u011bma satelity.<\/p>\n

\"Artemis\"
Artemis<\/figcaption><\/figure>\n

Nejnov\u011bj\u0161\u00ed pokroky p\u0159inesla dru\u017eice s n\u00e1zvem Artemis. Dne 30. listopadu 2001 byla vyu\u017eita k v\u016fbec prvn\u00edmu p\u0159enosu sn\u00edmk\u016f pomoc\u00ed laserov\u00e9ho paprsku. Dokonal\u00e9 sn\u00edmky byly odesl\u00e1ny z dru\u017eice SPOT 4, ob\u00edhaj\u00edc\u00ed ve v\u00fd\u0161ce 832 km, na dru\u017eici Artemis, kter\u00e1 se nach\u00e1zela 31 000 km nad Zem\u00ed.<\/p>\n

V sou\u010dasn\u00e9 dob\u011b se Artemis vyu\u017e\u00edv\u00e1 k p\u0159enosu sn\u00edmk\u016f a obrovsk\u00fdch objem\u016f dat z dru\u017eice Envisat do centra ESA nedaleko \u0158\u00edma.<\/p>","protected":false},"excerpt":{"rendered":"

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 […]<\/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\/cs\/wp-json\/wp\/v2\/posts\/853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=853"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/853\/revisions"}],"predecessor-version":[{"id":4708,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/853\/revisions\/4708"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=853"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=853"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=853"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=853"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=853"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=853"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=853"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}