{"id":8467,"date":"2020-06-08T12:28:44","date_gmt":"2020-06-08T06:58:44","guid":{"rendered":"https:\/\/triumphias.com\/blog\/?p=8467"},"modified":"2020-06-08T12:33:40","modified_gmt":"2020-06-08T07:03:40","slug":"what-is-163348-2002-nn4","status":"publish","type":"post","link":"https:\/\/triumphias.com\/blog\/what-is-163348-2002-nn4\/","title":{"rendered":"What is 163348 (2002 NN4)?"},"content":{"rendered":"<p><span style=\"color: #0000ff;\"><strong>Relevance: Prelims: Science and technology<\/strong><\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.indiathinkers.com\/wp-content\/uploads\/2020\/06\/Near-Earth-asteroid-.jpg?fit=478%2C342&amp;ssl=1&amp;resize=1200%2C858.57740585774\" alt=\"Near Earth Asteroid 163348 (2002 NN4) to Pass Earth | INDIATHINKERS\" \/><\/p>\n<p><span style=\"color: #ff0000;\"><strong>Why in news?<\/strong><\/span><\/p>\n<p>\u2022 NASA announced that a giant asteroid is expected to pass Earth (at a safe distance) on June 6.<\/p>\n<p>\u2022 The asteroid is estimated to be between 250-570 meters in diameter, according to NASA\u2019s Jet Propulsion Laboratory (JPL). <span style=\"color: #008080;\"><strong>A Near-Earth Object (NEO), the asteroid is called 163348 (2002 NN4) and is classified as a Potentially Hazardous Asteroid (PHA).<\/strong><\/span><\/p>\n<p><span style=\"color: #ff0000;\"><b>What is 163348 (2002 NN4)?<\/b><\/span><\/p>\n<p>\u2022 This asteroid is classified as a PHA, which means the asteroid has the potential to make threatening close approaches to the Earth.<\/p>\n<p>\u2022 Asteroids with a minimum orbit intersection distance (MOID) of about 0.05 (AU is the distance between the Earth and the Sun and is roughly 150 million km), which is about 7,480,000 km or less and an absolute magnitude (H) of 22 (smaller than about 150 m or 500 feet in diameter) or less are considered PHAs.<\/p>\n<p><span style=\"color: #ff0000;\"><b>What are Near-Earth Objects (NEOs), why are they studied?<\/b><\/span><\/p>\n<p>\u2022 NEOs occasionally approach close to the Earth as they orbit the Sun, NASA\u2019s Center for Near-Earth Object Study (CNEOS) determines the times and distances of these objects as and when their approach to the Earth is close.<\/p>\n<p>\u2022 NASA defines NEOs as comets and asteroids nudged by the gravitational attraction of nearby planets into orbits which allows them to enter the Earth\u2019s neighbourhood. These objects are composed mostly of water ice with embedded dust particles.<\/p>\n<p><span style=\"color: #ff0000;\"><b>Way ahead:<\/b><\/span><\/p>\n<p>\u2022 The scientific interest in comets and asteroids is largely due to their status as relatively unchanged remnant debris from the solar system formation process over 4.6 billion years ago. Therefore, these NEOs offer scientists clues about the chemical mixture from the planets formed.<\/p>\n<p>\u2022 NASA maintains that objects of this size and larger pose a risk to Earth of \u201cthe greatest concern\u201d due to the level of devastation that the impact is capable of causing.<\/p>\n<p>\u2022 Further, no asteroid larger than 140 metre has a \u201csignificant\u201d chance of hitting the Earth for the next 100 years, less than half of the estimated 25,000 NEOs that are 140 metres or larger in size have been found to date.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #0000ff;\"><strong>For more such notes, Articles, News &amp; Views Join our Telegram Channel.<\/strong><\/span><\/p>\n<p><a title=\"Telegram Link\" href=\"https:\/\/t.me\/triumphias\" target=\"_blank\"><span style=\"color: #ff0000;\"><strong>https:\/\/t.me\/triumphias<\/strong><\/span><\/a><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Click the link below to see the details about the UPSC \u2013Civils courses offered by Triumph IAS.<\/strong> <\/span><span style=\"color: #ff0000;\"><strong><a style=\"color: #ff0000;\" title=\"Courses available\" href=\"https:\/\/triumphias.com\/pages-all-courses.php\">https:\/\/triumphias.com\/pages-all-courses.php<\/a><\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Relevance: Prelims: Science and technology Why in news? \u2022 NASA announced that a giant asteroid is expected to pass Earth<\/p>\n","protected":false},"author":1,"featured_media":6727,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[123],"tags":[392],"class_list":["post-8467","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs","tag-union-public-service-commission-upsc"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/posts\/8467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/comments?post=8467"}],"version-history":[{"count":3,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/posts\/8467\/revisions"}],"predecessor-version":[{"id":8470,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/posts\/8467\/revisions\/8470"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/media\/6727"}],"wp:attachment":[{"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/media?parent=8467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/categories?post=8467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/triumphias.com\/blog\/wp-json\/wp\/v2\/tags?post=8467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}