{"id":953,"date":"2021-03-16T07:34:27","date_gmt":"2021-03-16T07:34:27","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=953"},"modified":"2021-06-15T06:56:32","modified_gmt":"2021-06-15T06:56:32","slug":"perseverance-roule-sur-mars","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/","title":{"rendered":"Perseverance roule sur Mars"},"content":{"rendered":"\r\n<p>C&#8217;est parti ! Apr\u00e8s un mois de v\u00e9rifications du rover et de son h\u00e9licopt\u00e8re, Perseverance s&#8217;appr\u00eate \u00e0 entreprendre son exploration du crat\u00e8re Jezero et de son delta s\u00e9dimentaire.<br \/>Un premier d\u00e9placement sur quatre m\u00e8tres, en marche avant, puis marche arri\u00e8re, a permis de tester moteurs et direction.<\/p>\r\n<figure id=\"attachment_959\" aria-describedby=\"caption-attachment-959\" style=\"width: 889px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/roue-avant-gauche.gif\" rel=\"lightbox[953]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-959\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/roue-avant-gauche.gif\" alt=\"\" width=\"889\" height=\"692\" \/><\/a><figcaption id=\"caption-attachment-959\" class=\"wp-caption-text\">S\u00e9quence de braquage des roues du rover Perseverance.<\/figcaption><\/figure>\r\n<p><br \/>De m\u00eame furent d\u00e9ploy\u00e9 le mat m\u00e9t\u00e9o, test\u00e9 l&#8217;articulation du bras robotique, et op\u00e9r\u00e9 le laser de la SuperCam, dirig\u00e9 vers un affleurement rocheux \u00e0 proximit\u00e9.\u00a0Les navigateurs se sont pench\u00e9s sur deux itin\u00e9raires possibles pour rejoindre le premier objectif g\u00e9ologique : le front du delta, \u00e0 environ 2 km au nord-ouest, qui dessine des falaises hautes d\u2019environ 70 m\u00e8tres. On y trouve au premier plan une petite butte d\u00e9tach\u00e9e plein ouest : une butte t\u00e9moin, rescap\u00e9e de l\u2019\u00e9rosion qui offrira une premi\u00e8re lecture des s\u00e9diments dudit delta.<\/p>\r\n<figure id=\"attachment_960\" aria-describedby=\"caption-attachment-960\" style=\"width: 918px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/Carte-geologique.png\" rel=\"lightbox[953]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-960\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/Carte-geologique.png\" alt=\"\" width=\"918\" height=\"622\" srcset=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/Carte-geologique.png 918w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/Carte-geologique-450x305.png 450w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/Carte-geologique-768x520.png 768w\" sizes=\"auto, (max-width: 918px) 100vw, 918px\" \/><\/a><figcaption id=\"caption-attachment-960\" class=\"wp-caption-text\">La carte g\u00e9ologique initiale du s site d&#8217;atterrissage, avec la position de Perseverance marqu\u00e9e par une balise rouge, et son itin\u00e9raire initial.<\/figcaption><\/figure>\r\n<figure id=\"attachment_956\" aria-describedby=\"caption-attachment-956\" style=\"width: 1201px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant-.jpg\" rel=\"lightbox[953]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-956\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant-.jpg\" alt=\"\" width=\"1201\" height=\"891\" srcset=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant-.jpg 1201w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant--450x334.jpg 450w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant--1024x760.jpg 1024w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24485-delta-remnant--768x570.jpg 768w\" sizes=\"auto, (max-width: 1201px) 100vw, 1201px\" \/><\/a><figcaption id=\"caption-attachment-956\" class=\"wp-caption-text\">La butte t\u00e9moin des s\u00e9diments du delta<\/figcaption><\/figure>\r\n<p>Pour l&#8217;atteindre, il faut contourner un champ de cendres volcaniques assez rugueux, stri\u00e9 de figures d&#8217;\u00e9rosion, et les navigateurs h\u00e9sitent \u00e0 le faire dans le sens des aiguilles d&#8217;une montre ou en sens contraire, par le sud ou par le nord. \u00a0L&#8217;itin\u00e9raire nord a l&#8217;avantage de pr\u00e9senter deux petits crat\u00e8res d&#8217;impact qui poin\u00e7onnent son contour.<\/p>\r\n<figure id=\"attachment_957\" aria-describedby=\"caption-attachment-957\" style=\"width: 1067px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map.png\" rel=\"lightbox[953]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-957\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map.png\" alt=\"\" width=\"1067\" height=\"600\" srcset=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map.png 1067w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map-450x253.png 450w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map-1024x576.png 1024w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/PIA24486-Drive-Map-768x432.png 768w\" sizes=\"auto, (max-width: 1067px) 100vw, 1067px\" \/><\/a><figcaption id=\"caption-attachment-957\" class=\"wp-caption-text\">Nouvelle proposition d&#8217;itin\u00e9raire pour Perseverance (point blanc), avec au choix deux chemins (bleu et indigo) pour rejoindre la butte, puis tracer (ligne jaune) vers la falaise principale du delta.<\/figcaption><\/figure>\r\n<p>Mais dans un premier temps, Perseverance posera son h\u00e9licopt\u00e8re au sol, qui est log\u00e9 sous son chassis : le drone pourra prendre des vues a\u00e9riennes des deux itin\u00e9raires et permettre aux g\u00e9ologues de faire leur choix.<\/p>\r\n<p>&nbsp;<\/p>\r\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>C&#8217;est parti ! Apr\u00e8s un mois de v\u00e9rifications du rover et de son h\u00e9licopt\u00e8re, Perseverance s&#8217;appr\u00eate \u00e0 entreprendre son exploration du crat\u00e8re Jezero et de son delta s\u00e9dimentaire.Un premier d\u00e9placement sur quatre m\u00e8tres, en marche avant, puis marche arri\u00e8re, a permis de tester moteurs et direction. De m\u00eame furent d\u00e9ploy\u00e9 le mat m\u00e9t\u00e9o, test\u00e9 l&#8217;articulation &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Perseverance roule sur Mars<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[13,4],"tags":[],"class_list":["post-953","post","type-post","status-publish","format-standard","hentry","category-actualites","category-sciences"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Perseverance roule sur Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/title>\n<meta name=\"description\" content=\"Perseverance roule sur Mars et apr\u00e8s une reconnaissance avec son drone h\u00e9licopt\u00e8re ira \u00e9tudier une butte au front du delta du crat\u00e8re Jezero\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Charles Frankel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/\",\"name\":\"Perseverance roule sur Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/roue-avant-gauche.gif\",\"datePublished\":\"2021-03-16T07:34:27+00:00\",\"dateModified\":\"2021-06-15T06:56:32+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"description\":\"Perseverance roule sur Mars et apr\u00e8s une reconnaissance avec son drone h\u00e9licopt\u00e8re ira \u00e9tudier une butte au front du delta du crat\u00e8re Jezero\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2021\/03\/16\/perseverance-roule-sur-mars\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/roue-avant-gauche.gif\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2021\/03\/roue-avant-gauche.gif\",\"width\":889,\"height\":692,\"caption\":\"S\u00e9quence de braquage des roues du rover Perseverance.\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/\",\"name\":\"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"description\":\"La science ? 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