{"id":839,"date":"2004-12-02T15:26:00","date_gmt":"2004-12-02T14:26:00","guid":{"rendered":"https:\/\/kids.esa.int\/countdown\/"},"modified":"2026-10-08T00:32:51","modified_gmt":"2026-10-07T22:32:51","slug":"countdown","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/de\/countdown\/","title":{"rendered":"Countdown"},"content":{"rendered":"
\n

Die Startkampagne f\u00fcr eine Ariane-5 dauert normalerweise ungef\u00e4hr f\u00fcnf Wochen. W\u00e4hrend der fr\u00fchen Phasen bereiten die Teams die Rakete und die Satelliten vor und unterziehen sie zahlreichen Pr\u00fcfungen. Obwohl dieser Vorgang von unterschiedlichen Teams durchgef\u00fchrt wird, ist er doch so gut organisiert, dass alles rechtzeitig fertig ist.<\/p>\n<\/div>\n

12 Tage vor dem Start wird damit begonnen, die Satelliten auf der Tr\u00e4gerrakete zu montieren. Dies findet im Endmontagegeb\u00e4ude statt.<\/p>\n

Einen Tag vor dem Start rollt die Ariane-5 \u00fcber die Gleise zur Abschussrampe. Sobald die mobile Startplattform mit der Abschussrampe verbunden ist, beginnt der Countdown.<\/p>\n

Die Haupttreibstofftanks werden gef\u00fcllt, die Untersysteme der Tr\u00e4gerrakete \u00fcberpr\u00fcft und das Flugprogramm in den Computer geladen. Wenn nur noch 6 Minuten und 30 Sekunden bis zum Start fehlen, wird der Countdown schlie\u00dflich automatisch.<\/p>\n

'10, 9, 8, \u2026'. Hinter einem Fenster aus Sicherheitsglas im Jupiter-Kontrollzentrum, 12 km von der Startrampe entfernt, z\u00e4hlt der Operationsleiter die letzten Sekunden:<\/p>\n

'\u2026 3, 2, 1, d\u00e9collage'! Die Triebwerke werden gez\u00fcndet und die Tr\u00e4gerrakete hebt ab. Auf ihrem Flug per Autopilot in Richtung Osten oder Norden \u00fcber den Ozean wird die Ariane 5 mit gr\u00f6\u00dfter Aufmerksamkeit \u00fcberwacht.<\/p>\n

40 Minuten sp\u00e4ter treffen die Nachrichten \u00fcber den Eintritt der Raumsonde in ihre Umlaufbahn ein. Mission beendet.<\/p>","protected":false},"excerpt":{"rendered":"

An Ariane-5 launch campaign usually lasts about five weeks. During the early stages, the teams prepare and check the rocket and the satellites. Although the work is done by different […]<\/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\/2001\/11\/countdown_to_launch2\/17863307-3-eng-GB\/Countdown_to_launch.gif","esa_banner_description":"Countdown to launch","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/11\/Countdown_to_launch2","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":[10,41,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-839","post","type-post","status-publish","format-standard","hentry","category-learn","category-rockets-technology","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/comments?post=839"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/839\/revisions"}],"predecessor-version":[{"id":1982,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/posts\/839\/revisions\/1982"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/media?parent=839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/categories?post=839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/tags?post=839"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/panel?post=839"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/language?post=839"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/age?post=839"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/duration?post=839"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/resource_type?post=839"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/audience?post=839"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/de\/wp-json\/wp\/v2\/wf_post_folders?post=839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}