{"id":16494,"date":"2019-03-20T18:50:59","date_gmt":"2019-03-20T17:50:59","guid":{"rendered":"https:\/\/www.asi.it\/?page_id=16494"},"modified":"2020-04-09T12:28:43","modified_gmt":"2020-04-09T10:28:43","slug":"juno","status":"publish","type":"page","link":"https:\/\/www.asi.it\/en\/planets-stars-universe\/solar-system-and-beyond\/juno\/","title":{"rendered":"JUNO"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\"><strong>Subject line<\/strong>: origin and evolution of the Giant Planets.<\/span><\/p>\r\n<p class=\"p1\"><span class=\"s1\"><strong>Responsibility of the Mission<\/strong>: NASA<\/span><\/p>\r\n<p class=\"p1\"><span class=\"s1\"><strong>Date of launch<\/strong>: August 5<\/span><span class=\"s2\"><sup>th<\/sup><\/span><span class=\"s1\">, 2011<\/span><\/p>\r\n<p class=\"p1\"><span class=\"s1\"><strong>End of mission<\/strong>: 2022<\/span><\/p>\r\n&nbsp;\r\n<p class=\"p1\"><strong><span class=\"s1\">Description<\/span><\/strong><\/p>\r\n<p class=\"p1\"><span class=\"s1\">JUNO, selected in 2005, is the second mission of the NASA New Frontiers programme and is aimed at observing Jupiter. The launch took place on August 5<\/span><span class=\"s2\"><sup>th<\/sup><\/span><span class=\"s1\">, 2011 from Cape Canaveral and the space probe arrived in the Jupiter orbit on July 4<\/span><span class=\"s2\"><sup>th<\/sup><\/span><span class=\"s1\">, 2016. After the cruising stage, which included a fly-by around Earth performed on October 9<\/span><span class=\"s2\"><sup>th<\/sup><\/span><span class=\"s1\">, 2013, Juno entered a polar orbit around Jupiter whose pericentre is equal to 1.06 Jupiter radii, optimized according to the scientific requirements and chosen also to minimize the exposition of the instruments to radiations. Juno will orbit around Jupiter for a year, for a total of 33 orbits.\u00a0<\/span><\/p>\r\n&nbsp;\r\n<p class=\"p1\"><strong><span class=\"s1\">Scientific goals<\/span><\/strong><\/p>\r\n<p class=\"p1\"><span class=\"s1\">The Juno mission aims at analysing the characteristics of Jupiter as a representative of the Giant Planets. In fact, Jupiter can provide us with the necessary knowledge to understand the origin of the Solar System and the planetary systems we are discovering around other stars.<\/span><\/p>\r\n<p class=\"p1\"><span class=\"s1\">Juno\u2019s scientific goals mainly consist in understanding the origin and evolution of the planet Jupiter (there are currently three different theories on its formation), determining the internal structure of the planet and assessing whether it has a solid nucleus, exploring the polar magnetosphere and researching the origin of the magnetic field, measuring the abundance of water, characterising the winds in the low atmosphere and the relative abundance of oxygen and nitrogen and the variations due to atmospheric phenomena. Furthermore, another objective of the mission is observing Jupiter\u2019s aurora borealis, already observed on Earth, and understanding its mechanism with the purpose of studying the magnetic field of the planet and its interaction with the atmosphere. With its spinning configuration, Juno will perform a complete map of Jupiter\u2019s gravitational and magnetic fields and a study on the composition of the atmosphere. To reach such goals, a special focus was placed on defining the orbit, which will be polar and will undergo a precession motion to obtain a better coverage of the planet.<\/span><\/p>\r\n&nbsp;\r\n<p class=\"p1\"><strong><span class=\"s1\">Italian contribution<\/span><\/strong><\/p>\r\n<p class=\"p1\"><span class=\"s1\">The Italian participation in the mission is based on the now established experience in the field of spectrometers, optical cameras and radio science. In particular, Italy provided two instruments: the JIRAM infrared imaging spectrometer (Jovian InfraRed Auroral Mapper, PI Alberto Adriani from the INAF-IAPS, manufactured by Leonardo-Finmeccanica\u2019s Avionics Division) and the KaT radio science instrument (Ka-Band Translator, PI Luciano Iess from the Sapienza University of Rome, manufactured by Thales Alenia Space-I), representing the Ka-band portion of the gravity experiment. Both instruments take advantage of important synergies with the similar instruments under development for the BepiColombo mission, optimizing costs and increasing both the scientific and technological role of Italy.<\/span><\/p>\r\n&nbsp;\r\n<p class=\"p1\"><strong><span class=\"s1\">International agreements <\/span><\/strong><\/p>\r\n<p class=\"p1\"><span class=\"s1\">LoA signed by the NASA and the ASI on March 21<\/span><span class=\"s2\"><sup>st<\/sup><\/span><span class=\"s1\">, 2008.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Subject line: origin and evolution of the Giant Planets. Responsibility of the Mission: NASA Date of launch: August 5th, 2011 End of mission: 2022 &nbsp; Description JUNO, selected in 2005, [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2587,"parent":16481,"menu_order":442,"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":[],"tags":[],"class_list":["post-16494","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>JUNO - ASI<\/title>\n<meta name=\"description\" content=\"Subject line: origin and evolution of the Giant Planets. 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