{"id":454,"date":"2013-08-21T07:50:00","date_gmt":"2013-08-21T05:50:00","guid":{"rendered":"https:\/\/kids.esa.int\/europe_s_space_sentinels\/"},"modified":"2026-10-08T00:28:23","modified_gmt":"2026-10-07T22:28:23","slug":"europe_s_space_sentinels","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/europe_s_space_sentinels\/","title":{"rendered":"Europas rumfartssatellitter"},"content":{"rendered":"<div class=\"lede\">\n<p>P\u00e5 baggrund af mere end 30 \u00e5rs erfaring med at sende jordobservationssatellitter i kredsl\u00f8b udvikler ESA fem nye typer rumfart\u00f8jer, der g\u00e5r under navnet Sentinel. Hver Sentinel-mission best\u00e5r af to identiske satellitter for at sikre maksimal d\u00e6kning af Jorden.<\/p>\n<\/div>\n<p>Disse \u00bb\u00f8jne i himlen\u00ab vil sende enorme m\u00e6ngder data tilbage om Jordens overflade og atmosf\u00e6re. Disse oplysninger vil blive anvendt til at d\u00e6kke Copernicus-programmets operationelle behov.<\/p>\n<p>Sentinel-1 er en radarbaseret billedoptagelsesmission, der fungerer i al slags vejr og d\u00f8gnet rundt. Blandt missionens mange opgaver er overv\u00e5gning af havisen i Arktis, kontrol af havforurening (f.eks. olieudslip), kortl\u00e6gning af landbev\u00e6gelser, unders\u00f8gelse af skove, vand og jord samt st\u00f8tte til katastrofehj\u00e6lp. Den pol\u00e6rt kredsende Sentinel-1A-satellit blev opsendt den 3. april 2014. Dens tvilling, Sentinel-1B, blev opsendt to \u00e5r senere, den 25. april 2016.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"Astrium GmbH\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/02\/Sentinel-22\" 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\/2012\/02\/sentinel-22\/17878552-2-eng-GB\/Sentinel-2.jpg\" alt=\"Sentinel-2\"><figcaption>Sentinel-2<\/figcaption><\/figure>\n<p>Sentinel-2 er endnu et par satellitter i pol\u00e6r bane. De vil levere detaljerede optiske billeder af vegetation, jord- og vandoverflader samt kystomr\u00e5der. Sentinel-2A blev opsendt den 23. juni 2015. Sentinel-2B blev opsendt den 7. marts 2017.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\u2013J. Huart\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/02\/Sentinel-32\" 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\/2012\/02\/sentinel-32\/17871448-2-eng-GB\/Sentinel-3.jpg\" alt=\"Sentinel-3\"><figcaption>Sentinel-3<\/figcaption><\/figure>\n<p>Sentinel-3\u2019s forskellige instrumenter vil m\u00e5le havoverfladens h\u00f8jde, temperaturen p\u00e5 land og havoverfladen samt havets farve (som skyldes sm\u00e5 levende organismer). Sentinel-3A blev med succes opsendt den 16. februar 2016, mens opsendelsen af Sentinel-3B er planlagt til 2017.<\/p>\n<p>B\u00e5de Sentinel-4 og Sentinel-5 skal overv\u00e5ge luftkvaliteten, ozonlaget, solstr\u00e5lingen og klimaforandringerne. Sentinel-4 vil best\u00e5 af flere instrumenter ombord p\u00e5 to Meteosat Third Generation-vejrsatellitter i kredsl\u00f8b over \u00e6kvator.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1280\" data-credit=\"ESA-P. Carril, 2012\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/11\/Sentinel-5_precursor2\" 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\/2012\/11\/sentinel-5_precursor2\/18245958-2-eng-GB\/Sentinel-5_precursor.jpg\" alt=\"Sentinel-5 precursor\"><figcaption>Sentinel-5-forl\u00f8beren<\/figcaption><\/figure>\n<p>Sentinel-5-instrumenterne vil blive monteret p\u00e5 en MetOp Second Generation (MSG)-satellit i pol\u00e6r bane, der flyver i en langt lavere h\u00f8jde end Sentinel-4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Based on over 30 years of experience in flying Earth observation satellites, ESA is developing five new types of spacecraft, known as Sentinels. Each Sentinel mission is made up of [&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\/2007\/05\/sentinel-12\/17892760-2-eng-GB\/Sentinel-1.jpg","esa_banner_description":"Sentinel-1","esa_banner_credit":"ESA\/P. 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