{"id":980,"date":"2008-06-04T08:45:00","date_gmt":"2008-06-04T06:45:00","guid":{"rendered":"https:\/\/kids.esa.int\/listen_to_phoenix_descend\/"},"modified":"2026-10-08T00:34:28","modified_gmt":"2026-10-07T22:34:28","slug":"listen_to_phoenix_descend","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/listen_to_phoenix_descend\/","title":{"rendered":"Hallgasd, ahogy a F\u0151nix lesz\u00e1ll"},"content":{"rendered":"<div class=\"lede\">\n<p>A Mars Express fed\u00e9lzet\u00e9n r\u00f6gz\u00edtett adatok seg\u00edts\u00e9g\u00e9vel hallhat\u00f3, ahogy a Phoenix lesz\u00e1ll a V\u00f6r\u00f6s Bolyg\u00f3 felsz\u00edn\u00e9re. A Mars Express rep\u00fcl\u00e9sir\u00e1ny\u00edt\u00f3 csapata \u00e1ltal feldolgozott felv\u00e9teleken a Phoenix lesz\u00e1ll\u00e1s\u00e1nak hangjai hangosan \u00e9s tiszt\u00e1n hallhat\u00f3k.<\/p>\n<p><a href=\"http:\/\/download.esa.int\/mp3\/EDL_signal_received_by_MELACOM_versus_time_converted_in_Audio_v3.mp3\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"http:\/\/download.esa.int\/mp3\/EDL_signal_received_by_MELACOM_versus_time_converted_in_Audio_v3.mp3\" target=\"_blank\" rel=\"noopener\">Hallgassa meg most<\/a><\/p>\n<\/div>\n<p>A Phoenixet k\u00f6vet\u0151 Mars Express Lander Communication System (MELACOM) rendszerb\u0151l sz\u00e1rmaz\u00f3 adatokat r\u00f6viddel a Phoenix lesz\u00e1ll\u00e1sa ut\u00e1n fogt\u00e1k a F\u00f6ld\u00f6n.<\/p>\n<h2>Amikor a Mars Express elrep\u00fclt<\/h2>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/Media\/Animations\/Phoenix_signal_received_by_Mars_Express\" 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\/media\/animations\/phoenix_signal_received_by_mars_express\/8477-5-eng-GB\/Phoenix_signal_received_by_Mars_Express.jpg\" alt=\"\"><\/figure>\n<p>Ez az anim\u00e1ci\u00f3 a Phoenix lesz\u00e1ll\u00e1s\u00e1nak jel\u00e9t mutatja, amelyet a MELACOM r\u00f6gz\u00edtett.<\/p>\n<p>Az anim\u00e1ci\u00f3n l\u00e1that\u00f3 cs\u00facs, a 7 \u00e9s 8 kilohertz k\u00f6z\u00f6tti frekvenciatartom\u00e1nyban, a Phoenix \u0171rsond\u00e1t\u00f3l \u00e9rkez\u0151 jelet jelzi.<br \/>A lesz\u00e1ll\u00f3egys\u00e9g az anim\u00e1ci\u00f3ban a kezd\u00e9si id\u0151pontt\u00f3l sz\u00e1m\u00edtott k\u00f6r\u00fclbel\u00fcl 342 m\u00e1sodperct\u0151l l\u00e1that\u00f3, \u00e9s k\u00f6r\u00fclbel\u00fcl 1085 m\u00e1sodpercn\u00e9l t\u0171nik el. Ez azt mutatja, ahogy a Mars Express befogja a Phoenix jel\u00e9t, \u00e9s k\u00f6veti azt, mik\u00f6zben egyre k\u00f6zelebb ker\u00fcl a lesz\u00e1ll\u00f3egys\u00e9ghez; a Mars Express a Phoenixhez legk\u00f6zelebb 1550 km-re jutott.<br \/>Amint a Mars Express elrep\u00fclt, a lesz\u00e1ll\u00f3egys\u00e9g kinyitotta az ejt\u0151erny\u0151j\u00e9t, lev\u00e1lt r\u00f3la, majd lesz\u00e1llt; ekkor megszakadt a lesz\u00e1ll\u00f3egys\u00e9gt\u0151l \u00e9rkez\u0151 jel.<\/p>\n<p>Az anim\u00e1ci\u00f3n l\u00e1that\u00f3 cs\u00facs eltol\u00f3d\u00e1sa az \u00fagynevezett Doppler-effektusnak k\u00f6sz\u00f6nhet\u0151, amely nagyon hasonl\u00edt ahhoz, amit hallunk, amikor egy elhalad\u00f3 vonat s\u00edpj\u00e1t hallgatjuk.<\/p>\n<p>A jelet sikeresen nyomon k\u00f6vett\u00e9k, m\u00e9g a lesz\u00e1ll\u00e1s sor\u00e1n v\u00e1rhat\u00f3 ad\u00e1skimarad\u00e1si id\u0151szak alatt is, eg\u00e9szen addig, am\u00edg a lesz\u00e1ll\u00f3egys\u00e9g elt\u0171nt a Mars Express l\u00e1t\u00f3mezej\u00e9b\u0151l. Az ad\u00e1skimarad\u00e1si id\u0151szakot a szonda k\u00f6r\u00fcli ioniz\u00e1ci\u00f3 okozza, amely a lesz\u00e1ll\u00f3egys\u00e9g l\u00e9gk\u00f6r\u00f6n kereszt\u00fcli ereszked\u00e9se sor\u00e1n fokoz\u00f3dik, \u00e9s ennek k\u00f6vetkezt\u00e9ben csak nagyon gyenge jelek jutnak \u00e1t.<\/p>\n<p>A felv\u00e9tel t\u00f6bbi r\u00e9sze \u2013 az eleje \u00e9s a v\u00e9ge \u2013 a Mars Express \u00e1ltal gener\u00e1lt h\u00e1tt\u00e9rzajt tartalmazza.<\/p>\n<h2>Megjegyz\u00e9sek a szerkeszt\u0151knek:<\/h2>","protected":false},"excerpt":{"rendered":"<p>With data recorded on board Mars Express, you can hear Phoenix descend on to the surface of the Red Planet. After being processed by the Mars Express Flight Control Team, [&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\/2008\/06\/phoenix2\/17876331-2-eng-GB\/Phoenix.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/06\/Phoenix2","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-980","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=980"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/980\/revisions"}],"predecessor-version":[{"id":4772,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/980\/revisions\/4772"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=980"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=980"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=980"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=980"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=980"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=980"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=980"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}