{"id":7038,"date":"2024-01-15T09:28:40","date_gmt":"2024-01-15T08:28:40","guid":{"rendered":"https:\/\/satdi.umh.es\/?p=7038"},"modified":"2024-01-15T09:30:15","modified_gmt":"2024-01-15T08:30:15","slug":"la-saturacion-de-la-orbita-terrestre","status":"publish","type":"post","link":"https:\/\/satdi.umh.es\/ca\/2024\/01\/15\/la-saturacion-de-la-orbita-terrestre\/","title":{"rendered":"La saturaci\u00f3 de l&#8217;\u00f3rbita terrestre"},"content":{"rendered":"<p>Si hi ha alguna cosa que tots recordem de les classes d&#8217;astronomia, \u00e9s que la Lluna \u00e9s el sat\u00e8l\u00b7lit de la Terra. Almenys, l&#8217;\u00fanic natural. Des que es va llan\u00e7ar l&#8217;Sputnik al 1957, s&#8217;han enviat a l&#8217;espai gaireb\u00e9 20.000 sat\u00e8l\u00b7lits artificials. Segons les Nacions Unides, que proporciona una <a href=\"https:\/\/www.unoosa.org\/oosa\/osoindex\/search-ng.jspx?lf_id=#?c=%7B%22filters%22:%5B%7B%22fieldName%22:%22en%23object.status.inOrbit_s1%22,%22value%22:%22Yes%22%7D,%7B%22fieldName%22:%22en%23object.unRegistration.unRegistered_s1%22,%22value%22:%22Yes%22%7D%5D,%22sortings%22:%5B%7B%22fieldName%22:%22object.launch.dateOfLaunch_s1%22,%22dir%22:%22desc%22%7D,%7B%22fieldName%22:%22object.nationalDesignator_s1%22,%22dir%22:%22desc%22%7D,%7B%22fieldName%22:%22object.nameOfSpaceObjectIno_s1%22,%22dir%22:%22desc%22%7D,%7B%22fieldName%22:%22object.launch.stateOfRegistry_s1%22,%22dir%22:%22desc%22%7D%5D,%22match%22:%22%22,%22termMatch%22:%22Espa%C3%B1a%22%7D\">base de dades per a consultar l&#8217;estat dels sat\u00e8l\u00b7lits llan\u00e7ats a l&#8217;espai<\/a>, 11.000 d&#8217;ells continuen orbitant al voltant del nostre planeta. Encara que aquest n\u00famero puga semblar molt elevat, prompte podria quedar obsolet.<\/p>\n<p>Segons la Uni\u00f3 Internacional de Telecomunicacions, fins a 1 mili\u00f3 de nous sat\u00e8l\u00b7lits artificials podrien estar prompte en \u00f2rbita, atenent al nombre de sol\u00b7licituds tant d&#8217;ag\u00e8ncies espacials governamentals com d&#8217;empreses privades. Tenint en compte que el n\u00famero actual ja provoca problemes en l&#8217;observaci\u00f3 del cel nocturn, ja que alguns sat\u00e8l\u00b7lits artificials com BlueWalker 3 o Starlink interfereixen en tasques cient\u00edfiques, el futur no sembla molt esperan\u00e7ador per a la volta celeste.<\/p>\n<p>A primera vista, posar en \u00f2rbita una gran quantitat de sat\u00e8l\u00b7lits sembla ser una tasca senzilla i segura, ja que, per evitar xocs entre aquests cossos artificials, es col\u00b7loquen en diferents traject\u00f2ries orbitals i a diferents altituds. A cada sat\u00e8l\u00b7lit se li assigna una \u00f2rbita i una dist\u00e0ncia de seguretat amb respecte als altres per prevenir col\u00b7lisions, encara que en ocasions aix\u00f2 ha succe\u00eft. \u00c9s prou raonable preveure que aquest fenomen no far\u00e0 m\u00e9s que augmentar a mesura que es llancen m\u00e9s sat\u00e8l\u00b7lits a l&#8217;espai.<\/p>\n<p>L&#8217;augment de la brossa espacial generada per aquests impactes, sumat al fet que molts sat\u00e8l\u00b7lits continuen orbitant encara que ja no funcionen, \u00e9s un altre dels aspectes preocupants de l&#8217;escenari que li espera a l&#8217;\u00f2rbita terrestre si es posen en \u00f2rbita el n\u00famero de sat\u00e8l\u00b7lits artificials planificat.<\/p>\n<p><div id=\"attachment_7041\" style=\"width: 650px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/satdi.umh.es\/files\/2024\/01\/Debris-GEO1280.jpeg\"><img aria-describedby=\"caption-attachment-7041\" loading=\"lazy\" class=\"wp-image-7041 size-full\" src=\"https:\/\/satdi.umh.es\/files\/2024\/01\/Debris-GEO1280.jpeg\" alt=\"\" width=\"640\" height=\"512\" srcset=\"https:\/\/satdi.umh.es\/files\/2024\/01\/Debris-GEO1280.jpeg 640w, https:\/\/satdi.umh.es\/files\/2024\/01\/Debris-GEO1280-300x240.jpeg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><p id=\"caption-attachment-7041\" class=\"wp-caption-text\">Representaci\u00f3 de la saturaci\u00f3 orbital de la Terra, NASA<\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"<p>Si hi ha alguna cosa que tots recordem de les classes d&#8217;astronomia, \u00e9s que la Lluna \u00e9s el sat\u00e8l\u00b7lit de la Terra. Almenys, l&#8217;\u00fanic natural. Des que es va llan\u00e7ar l&#8217;Sputnik al 1957, s&#8217;han enviat a l&#8217;espai gaireb\u00e9 20.000 sat\u00e8l\u00b7lits artificials. Segons les Nacions Unides, que proporciona una base de dades per a consultar l&#8217;estat [&#8230;]<\/p>\n","protected":false},"author":6104,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_links_to":"","_links_to_target":""},"categories":[53433],"tags":[2758,14759,2593],"_links":{"self":[{"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/posts\/7038"}],"collection":[{"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/users\/6104"}],"replies":[{"embeddable":true,"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/comments?post=7038"}],"version-history":[{"count":0,"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/posts\/7038\/revisions"}],"wp:attachment":[{"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/media?parent=7038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/categories?post=7038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/satdi.umh.es\/ca\/wp-json\/wp\/v2\/tags?post=7038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}