{"id":624,"date":"2013-09-19T09:25:00","date_gmt":"2013-09-19T07:25:00","guid":{"rendered":"https:\/\/kids.esa.int\/re-entry_nears_for_esa_s_ferrari_of_space\/"},"modified":"2026-10-08T00:30:24","modified_gmt":"2026-10-07T22:30:24","slug":"re-entry_nears_for_esa_s_ferrari_of_space","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/re-entry_nears_for_esa_s_ferrari_of_space\/","title":{"rendered":"Vrnitev v atmosfero se bli\u017ea za \u2018Ferrarija vesolja\u2019 agencije ESA\u2019"},"content":{"rendered":"
\n

Po ve\u010d kot \u0161tirih letih v orbiti se misija GOCE agencije ESA bli\u017ea koncu. Sredi oktobra bo satelitu zmanjkalo goriva in njegova orbita se bo za\u010dela zmanj\u0161evati. Vstop v atmosfero naj bi se zgodil pribli\u017eno tri tedne kasneje.<\/p>\n<\/div>\n

GOCE kro\u017ei okoli Zemlje od marca 2009 na vi\u0161ini manj kot 270 km, kar je za znanstveni satelit nenavadno nizko. Njegova naloga je bila, da z neprimerljivo natan\u010dnostjo kartira drobna nihanja gravitacije na zemeljski povr\u0161ini.<\/p>\n

Gravitacija je sila, ki vse privla\u010di proti tlom. Vendar se zemeljska gravitacija od kraja do kraja nekoliko razlikuje. To je deloma posledica dejstva, da planet ni popolnoma okrogel \u2013 na polih je nekoliko splo\u0161\u010den. Na gravitacijo vplivajo tudi visoke gore in globoki oceanski jarki ter debelina in gostota oceanov in kamnin.<\/p>\n

\"New
Novi geoid GOCE<\/figcaption><\/figure>\n

Ko GOCE preleti obmo\u010dja z razli\u010dno gravitacijsko privla\u010dnostjo, se vesoljsko plovilo giblje gor in dol, njegovi instrumenti pa bele\u017eijo te spremembe v njegovi poti. Tak\u0161ne natan\u010dne meritve so omogo\u010dile njegova nizka orbita in elegantna, aerodinami\u010dna oblika, zaradi \u010desar so mu nadeli vzdevek \u2018Ferrari vesolja\u2019. Ta edinstveni satelit je tudi izjemno stabilen, saj nima nobenih gibljivih delov, ki se pogosto uporabljajo na drugih vesoljskih plovilih.<\/p>\n

Podatki iz satelita GOCE so se uporabili za preu\u010devanje oceanskih tokov, spreminjanja morske gladine, vi\u0161ine zemeljske povr\u0161ine in slojene strukture zemeljske kamnite skorje. Satelit je celo zaznal vetrove v vesolju in zvo\u010dne valove, ki so se po mo\u010dnem potresu, ki je 11. marca 2011 prizadel Japonsko, \u0161irili navzgor skozi atmosfero. Morda najpomembnej\u0161i rezultat je izjemno natan\u010den model (znan kot \u2018geoid\u2019) zemeljske gravitacije. Geoid prikazuje, kako bi Zemlja izgledala, \u010de bi bila gravitacija povsod na njeni povr\u0161ini enaka, tako da voda ne bi tekla iz ene to\u010dke v drugo.<\/p>","protected":false},"excerpt":{"rendered":"

After more than four years in orbit, ESA\u2019s GOCE mission is nearing its end. In mid-October, the satellite will run out of fuel and its orbit will begin to decay. […]<\/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\/2008\/03\/goce_in_orbit4\/18246217-2-eng-GB\/GOCE_in_orbit.jpg","esa_banner_description":"GOCE in orbit","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/03\/GOCE_in_orbit4","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-624","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\/sl\/wp-json\/wp\/v2\/posts\/624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=624"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/624\/revisions"}],"predecessor-version":[{"id":4591,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/624\/revisions\/4591"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=624"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=624"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=624"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=624"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=624"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=624"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=624"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}