{"id":781,"date":"2011-07-27T12:48:00","date_gmt":"2011-07-27T10:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/pioneering_satellite_reaches_retirement\/"},"modified":"2026-10-08T00:32:11","modified_gmt":"2026-10-07T22:32:11","slug":"pioneering_satellite_reaches_retirement","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/pioneering_satellite_reaches_retirement\/","title":{"rendered":"Uuenduslik satelliit l\u00e4heb pensionile"},"content":{"rendered":"
\n

\u00dcks ESA vanimaid t\u00f6\u00f6tavaid satelliite on peagi kasutuselt k\u00f5rvaldatav, olles tiirlenud \u00fcmber Maa ligi 85 000 korda ja l\u00e4binud umbes 3,8 miljardit kilomeetrit. Teine Euroopa kaugseire satelliit (ERS-2) lasti orbiidile 1995. aastal. N\u00fc\u00fcd on ESA otsustanud selle kasutusest k\u00f5rvaldada enne, kui see t\u00f6\u00f6tamise l\u00f5petab ja muutub ohuks teistele kosmoses\u00f5idukitele.<\/p>\n<\/div>\n

Alates 6. juulist alandatakse selle orbiiti j\u00e4rk-j\u00e4rgult mitme t\u00f5ukemootori s\u00fc\u00fctamise abil 800 km-lt umbes 550 km-le, kus kokkup\u00f5rke oht teiste satelliitidega on v\u00e4ike. Selle asemel, et muutuda kosmosepr\u00fcgiks, siseneb ERS-2 l\u00f5puks Maa atmosf\u00e4\u00e4ri ja p\u00f5leb seal \u00e4ra.<\/p>\n

ERS-1 (mis oli kasutusel aastatel 1991\u20132000) ja selle s\u00f5sarsatelliit tegutsesid pikka aega ja saavutasid m\u00e4rkimisv\u00e4\u00e4rseid tulemusi. Koos edastasid nad 20 aasta jooksul pidevat andmevoogu, mis t\u00f5i kaasa revolutsiooni Maa atmosf\u00e4\u00e4ri, maismaa, ookeanide ja polaarj\u00e4\u00e4 uurimisel.<\/p>\n

\"ERS-2
ERS-2 satelliit ja selle rakendused<\/figcaption><\/figure>\n

Nende seadmete hulka kuulus ka esimene mittes\u00f5jaline radar kosmoses. See suutis j\u00e4lgida maapinda igasugustes ilmastikutingimustes, nii p\u00e4eval kui \u00f6\u00f6sel, ning j\u00e4lgida, kuidas maapind liigub suurte maav\u00e4rinate v\u00f5i vulkaanipurskete ajal. Samuti suutis see kaardistada maapinna k\u00f5rgust.<\/p>\n

Muud m\u00f5\u00f5teriistad m\u00f5\u00f5tsid \u00fclemaailmset merepinna temperatuuri ja merepinna taseme muutusi \u2013 see on oluline teave kliimamuutust uurivatele teadlastele. Teine oluline ERS-2-l l\u00e4bi viidud eksperiment j\u00e4lgis Antarktika kohal asuva osoonikihi tohutu augu suuruse ja asukoha muutumist.<\/p>\n

Tuhanded uurimisprojektid ja teadusartiklid on tuginenud ERS-i andmetele. Nende poolt edastatud teave on aidanud meil paremini m\u00f5ista, kuidas Maa toimib. Nende pardal olnud seadmete t\u00e4iustatud versioone kasutatakse praegu sellistes missioonides nagu ESA Envisat, Earth Explorers ja Sentinels.<\/p>","protected":false},"excerpt":{"rendered":"

One of ESA\u2019s oldest working satellites is about to be retired, after orbiting Earth almost 85,000 times and travelling some 3.8 billion km. The second European Remote Sensing (ERS-2) satellite […]<\/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\/2011\/07\/ers-2_satellite2\/17883510-2-eng-GB\/ERS-2_satellite.jpg","esa_banner_description":"ERS-2 satellite","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/07\/ERS-2_satellite2","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":[42,10,66],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-781","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-water-world"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=781"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/781\/revisions"}],"predecessor-version":[{"id":4679,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/781\/revisions\/4679"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=781"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=781"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=781"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=781"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=781"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=781"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=781"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}