{"id":1317,"date":"2016-08-12T13:27:31","date_gmt":"2016-08-12T13:27:31","guid":{"rendered":"http:\/\/www.radio-science.eu\/?page_id=1317"},"modified":"2023-11-10T14:13:45","modified_gmt":"2023-11-10T14:13:45","slug":"asteroiden-steins-und-lutetia","status":"publish","type":"page","link":"https:\/\/fip-koeln.de\/en_us\/missionen-und-ziele\/rosetta\/asteroiden-steins-und-lutetia\/","title":{"rendered":"Astroids Steins and Lutetia"},"content":{"rendered":"<p>After the successful launching of Rosetta the decision of the flybys past the asteroids Steins and Lutetia was finally fixed on the 11th of March 2004. The asteroids reside in the asteroid belt between the orbits of Mars and Jupiter. The visit of an asteroid or more is part of the scientific aims of the mission since its beginning.<br>Asteroids are primitive bricks of the Solar System from the time when it formed some 4,6 billion years ago. They vary in size (some to 100 km) and composition and until now only a few could be investigated at close range.<br>The chosen asteroids Steins and Lutetia have quite different properties. Steins is a rather small object, with a diameter of about a few kilometers. Steins, mit einem Durchmesser von nur wenigen Kilometern ein vergleichsweise kleines Objekt, soll von Rosetta am 5. September 2008 aus etwa 1700 km Entfernung beobachtet werden. Diese \u201cBegegnung\u201d wird bei der relativ geringen Geschwindigkeit von etwa 9 km\/s w\u00e4hrend Rosettas ersten Ausflugs in den Asteroideng\u00fcrtel stattfinden.<br>Der zweite Asteroid, Lutetia, ist weitaus gr\u00f6\u00dfer: Er hat einen Durchmesser von rund 100 km. Ihn hatte Rosetta am 10. Juli 2010 w\u00e4hrend ihres zweiten Flugs durch den Asteroideng\u00fcrtel mit einer Vorbeifluggeschwindigkeit von 15 km\/s aus rund 3000 km Entfernung beobachtet.<br>Die Sonde hat bei ihren Vorbeifl\u00fcgen an diesen Urzeit-Felsen spektakul\u00e4re Bilder aufgenommen. Unsere Experiment RSI hat bei dem Lutetia Vorbeiflug die Masse und Dicchte des Asteroiden bestimmt, wodurch man mit Modellen die Struktur und Zusammensetzung des Innenren bestimmen konnte (P\u00e4tzold et al., 2012; Sierks et al., 2012; Weiss et al., 2013).<\/p>","protected":false},"excerpt":{"rendered":"<p>Nach dem erfolgreichen Start von Rosetta wurde am 11. M\u00e4rz 2004 endg\u00fcltig entschieden, mit der Raumsonde an den beiden Asteroiden Steins und Lutetia vorbeizufliegen. Sie liegen im Asteroideng\u00fcrtel zwischen den Umlaufbahnen von Mars und Jupiter. Schon seit dem Beginn der Missionsplanung geh\u00f6rt der Besuch eines oder mehrerer Asteroiden zu den wissenschaftlichen Zielen von Rosetta.Asteroiden sind [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":90,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-1317","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Asteroiden Steins und Lutetia - Radio Science<\/title>\n<meta name=\"description\" content=\"Am 11. 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