{"id":48106,"date":"2025-05-19T15:47:17","date_gmt":"2025-05-19T10:17:17","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=48106"},"modified":"2025-05-27T15:52:03","modified_gmt":"2025-05-27T10:22:03","slug":"polar-satellite-launch-vehicle-pslv","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/polar-satellite-launch-vehicle-pslv\/","title":{"rendered":"Polar Satellite Launch Vehicle (PSLV)"},"content":{"rendered":"<h2>Polar Satellite Launch Vehicle (PSLV) Latest News<\/h2>\n<p>ISRO launched the PSLV-C61 mission from Sriharikota to place the EOS-09 satellite into a Sun-synchronous polar orbit. The mission failed due to a third-stage issue.<\/p>\n<h2>What is PSLV?<\/h2>\n<ul>\n<li><strong>PSLV<\/strong>\u00a0stands for\u00a0<strong>Polar Satellite Launch Vehicle<\/strong>, a\u00a0<strong>four-stage launch vehicle<\/strong>\u00a0developed by the\u00a0<strong>Indian Space Research Organisation (ISRO)<\/strong>.<\/li>\n<li>It is primarily designed to\u00a0<strong>place satellites into Sun-synchronous polar orbits (SSPOs)<\/strong>, which are ideal for\u00a0<strong>Earth observation missions<\/strong>.<\/li>\n<li>Each stage of PSLV is powered by a\u00a0<strong>different engine and propellant combination<\/strong>, enabling it to\u00a0<strong>carry medium-weight payloads<\/strong>\u00a0to a variety of orbits with high precision.<\/li>\n<\/ul>\n<h3>Configuration and Design<\/h3>\n<ul>\n<li>The\u00a0<strong>PSLV has four stages<\/strong>, with\u00a0<strong>alternate solid and liquid propulsion systems<\/strong>:\n<ul>\n<li><strong>First Stage<\/strong>:\n<ul>\n<li>Uses\u00a0<strong>HTPB-based solid propellant<\/strong>\u00a0(Hydroxyl-Terminated Polybutadiene).<\/li>\n<li>In the\u00a0<strong>XL configuration<\/strong>, it is supported by\u00a0<strong>six strap-on boosters<\/strong>\u00a0that enhance the\u00a0<strong>initial thrust<\/strong>.<\/li>\n<li>Capable of generating a\u00a0<strong>peak thrust of 4.8 MegaNewtons (MN)<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Second Stage<\/strong>: Powered by the\u00a0<strong>Vikas engine<\/strong>, which uses a\u00a0<strong>liquid fuel combination<\/strong>:\n<ul>\n<li><strong>Unsymmetrical Dimethylhydrazine (UDMH)<\/strong>\u00a0as fuel<\/li>\n<li><strong>Nitrogen Tetroxide (N\u2082O\u2084)<\/strong>\u00a0as oxidiser<\/li>\n<li>Generates a thrust of approximately\u00a0<strong>0.8 MN<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Third Stage<\/strong>: Reverts to\u00a0<strong>solid propulsion<\/strong>, again using\u00a0<strong>HTPB-based fuel<\/strong>.<\/li>\n<li><strong>Fourth Stage<\/strong>: Utilises\u00a0<strong>two liquid engines<\/strong>\u00a0burning\u00a0<strong>Monomethylhydrazine (MMH)<\/strong>\u00a0and\u00a0<strong>Mixed Oxides of Nitrogen (MON)<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Polar Satellite Launch Vehicle (PSLV) FAQs<\/h2>\n<p><strong>Q1:\u00a0<\/strong>What is the Polar Satellite Launch Vehicle (PSLV)?<br \/>\n<strong>Ans:<\/strong>\u00a0PSLV is India\u2019s third-generation satellite launch vehicle developed by ISRO, known for its reliability in launching satellites into Sun-Synchronous Polar Orbits.<\/p>\n<p><strong>Q2:\u00a0<\/strong>Why is PSLV called the \u2018Workhorse of ISRO\u2019?<br \/>\n<strong>Ans:<\/strong>\u00a0PSLV earned this title due to its consistent performance, high success rate, and ability to launch multiple satellites in a single mission.<\/p>\n<p><strong>Q3:\u00a0<\/strong>What type of orbits can PSLV launch satellites into?<br \/>\n<strong>Ans:<\/strong>\u00a0PSLV can launch satellites into Polar Orbits, Geosynchronous Transfer Orbits (GTO), and even sub-Geosynchronous orbits.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/what-is-the-pslv\/article69590053.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PSLV is India\u2019s third-generation satellite launch vehicle developed by ISRO, known for its reliability in launching satellites into Sun-Synchronous Polar Orbits.<\/p>\n","protected":false},"author":8,"featured_media":48008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[546,21,22,23],"class_list":{"0":"post-48106","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-polar-satellite-launch-vehicle-pslv","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/48106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=48106"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/48106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/48008"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=48106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=48106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=48106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}