{"id":16813,"date":"2019-03-20T20:13:47","date_gmt":"2019-03-20T19:13:47","guid":{"rendered":"https:\/\/www.asi.it\/?page_id=16813"},"modified":"2020-04-10T14:24:58","modified_gmt":"2020-04-10T12:24:58","slug":"iris","status":"publish","type":"page","link":"https:\/\/www.asi.it\/en\/space-transportation\/iris\/","title":{"rendered":"IRIS"},"content":{"rendered":"<p style=\"text-align: justify;\">In 1992, the NASA and the ASI orbited <strong>Lageos-2<\/strong> (Laser Geodynamics Satellites), the successor to <strong>Lageos-1<\/strong>, aimed at precisely defining the <strong>shape of Earth<\/strong>, determining the movements of the <strong>tectonic plates<\/strong> due to the continental drift and measuring some <strong>general relativity<\/strong> parameters theorized by Einstein, with a 10% precision.<\/p>\r\n<p style=\"text-align: justify;\">Lageos-2 was launched from the <strong>Space Shuttle Columbia<\/strong>\u2019s cargo bay by the <strong>Iris (Italian Research Interim Stage)<\/strong> propulsion system.<\/p>\r\n<p style=\"text-align: justify;\">Iris, which transferred Lageos-2 at an altitude of about <strong>6000 km<\/strong>, was developed by Alenia and Snia Bpd (Fiat group) for the motor part.<\/p>","protected":false},"excerpt":{"rendered":"<p>In 1992, the NASA and the ASI orbited Lageos-2 (Laser Geodynamics Satellites), the successor to Lageos-1, aimed at precisely defining the shape of Earth, determining the movements of the tectonic [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2597,"parent":16809,"menu_order":289,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[68],"tags":[],"class_list":["post-16813","page","type-page","status-publish","has-post-thumbnail","hentry","category-space-transport"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - 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