{"id":44824,"date":"2025-02-06T12:57:28","date_gmt":"2025-02-06T07:27:28","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=44824"},"modified":"2025-10-11T12:44:39","modified_gmt":"2025-10-11T07:14:39","slug":"navic-indias-indigenous-satellite-navigation-system","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/navic-indias-indigenous-satellite-navigation-system\/","title":{"rendered":"NavIC: India&#8217;s Indigenous Satellite Navigation System"},"content":{"rendered":"<h2>What\u2019s in Today\u2019s article?<\/h2>\n<ul>\n<li>NavIC system Latest News<\/li>\n<li>Failures in IRNSS Satellites<\/li>\n<li>Current Operational Status of NavIC Satellites<\/li>\n<li>Importance of the NavIC System for India<\/li>\n<li>Future Plans for Expansion<\/li>\n<li>NavIC system FAQs<\/li>\n<\/ul>\n<h2>NavIC system Latest News<\/h2>\n<ul>\n<li>India\u2019s NVS-02 navigation satellite partially failed on February 2 due to engine non-firing, marking another setback for the <a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/irnss-navic\/\" target=\"_blank\"><strong>Indian Regional Navigation Satellite System (IRNSS)<\/strong><\/a>, or NavIC.\u00a0<\/li>\n<li>Conceived after the 1999 Kargil War, NavIC aimed to establish a seven-satellite constellation by 2016 for defence and civilian use. However, only five of the 11 satellites launched since 2013 remain fully operational.\u00a0<\/li>\n<li>Despite ISRO declaring the constellation complete in 2016, failures and replacements have plagued the \u20b92,250 crore program.<\/li>\n<\/ul>\n<h2>Failures in IRNSS Satellites<\/h2>\n<ul>\n<li><strong>Atomic Clock Malfunctions (2016 Onward)<\/strong>\n<ul>\n<li>Failures reported in rubidium atomic clocks used in IRNSS and ESA\u2019s Galileo GNSS.\n<ul>\n<li>Each IRNSS satellite has three atomic clocks.<\/li>\n<li>In July 2016, ISRO confirmed all clocks on IRNSS-1A had stopped working.<\/li>\n<\/ul>\n<\/li>\n<li>Despite this, ISRO stated the navigation system\u2019s overall performance remained unaffected.<\/li>\n<li>Clocks in IRNSS-1C, 1D, 1E, and 1G also developed issues over time.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Satellite Launch and Deployment Failures<\/strong>\n<ul>\n<li>IRNSS-1H, launched in 2017 to replace IRNSS-1A, failed as its heat shield did not detach.<\/li>\n<li>The latest satellite, IRNSS-1K (NVS-02), suffered an engine failure in 2025, leaving it in a sub-optimal orbit.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Overall Impact<\/strong>\n<ul>\n<li>Out of 11 IRNSS satellites launched, six have faced failures, affecting India\u2019s indigenous navigation system.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Current Operational Status of NavIC Satellites<\/h2>\n<ul>\n<li>ISRO\u2019s 2023-24 annual report says that following the launch of NVS-01 on May 28, 2023, five NavIC satellites are operational \u2013 IRNSS-1B, 1C, 1F, and 1I, and NVS-01 (IRNSS-1J).\u00a0<\/li>\n<li>However, according to some estimates, 1C is only partially operational due to the presence of the old series of atomic clocks that were reported to be malfunctioning.<\/li>\n<li><strong>Satellite Generations and Clock Issues<\/strong>\n<ul>\n<li>First-generation IRNSS satellites (1H and 1I) carried modified European clocks.<\/li>\n<li>Next-generation satellites (NVS-01 and NVS-02) use a mix of indigenous and foreign clocks.<\/li>\n<li>NVS-02 (IRNSS-1K) failed due to an engine malfunction.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Importance of the NavIC System for India<\/h2>\n<ul>\n<li><strong>Key Services Provided by NavIC<\/strong>\n<ul>\n<li><strong>Standard Positioning Service (SPS):<\/strong> For general and commercial use.<\/li>\n<li><strong>Restricted Service (RS):<\/strong> For defense forces.<\/li>\n<li>Offers <strong>positioning accuracy better than 20 meters<\/strong> across India and up to 1,500 km around it, with dual-frequency capabilities in L5 and S band.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Strategic Importance for Defense<\/strong>\n<ul>\n<li>NavIC ensures <strong>reliable positioning data<\/strong> critical for defense applications, unlike global systems such as GPS, which have military-encrypted services primarily for US and allied forces.<\/li>\n<li>Global navigation systems (GPS, GLONASS, Galileo, Beidou, QZSS) are mainly developed for military use, and NavIC provides India with independent and secure navigation.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Commercial and Consumer Adoption<\/strong>\n<ul>\n<li>For NavIC to become widespread, ISRO plans to partner with commercial service providers, including <strong>mobile phone<\/strong> and <strong>vehicle manufacturers<\/strong>.<\/li>\n<li>Qualcomm, a mobile chipmaker, agreed to incorporate NavIC support in some chipsets in December 2023.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Future Plans for Expansion<\/h2>\n<ul>\n<li>ISRO intends to launch <strong>three more second-generation satellites<\/strong> (NVS-03, 04, 05) to enhance the NavIC system and ensure continuity of services, despite setbacks like the NVS-02 engine failure.<\/li>\n<\/ul>\n<h2>NavIC system FAQs<\/h2>\n<p><strong>Q1.<\/strong> What is the difference between NavIC and IRNSS?<\/p>\n<p><strong>Ans.<\/strong> NavIC is the operational name of the Indian Regional Navigation Satellite System (IRNSS), providing regional positioning services.<\/p>\n<p><strong>Q2.<\/strong> How many satellites are there in IRNSS?<\/p>\n<p><strong>Ans. <\/strong>IRNSS, or NavIC, aims for seven satellites but currently operates only five fully functional satellites.<\/p>\n<p><strong>Q3. <\/strong>What is the purpose of IRNSS?<\/p>\n<p><strong>Ans.<\/strong> IRNSS provides accurate positioning data for both defense and civilian uses within India and surrounding regions.<\/p>\n<p><strong>Q4.<\/strong> Is NavIC available for public use?<\/p>\n<p><strong>An<\/strong>s. Yes, NavIC&#8217;s Standard Positioning Service (SPS) is available for public and commercial use, providing accurate positioning.<\/p>\n<p><strong>Q5<\/strong>. Is NavIC better than GPS?<\/p>\n<p><strong>Ans.<\/strong> NavIC is more reliable for India, offering regional coverage with higher accuracy, unlike GPS, which is US-centric.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/navic-indigenous-satnav-story-9818700\/\" target=\"_blank\" rel=\"nofollow noopener\">IE<\/a> | <a href=\"https:\/\/www.theweek.in\/news\/sci-tech\/2025\/02\/03\/navigating-the-unknown-nvs-02-faces-technical-hurdles.html\" target=\"_blank\" rel=\"nofollow noopener\">The Week<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn about NavIC, India&#8217;s satellite navigation system, its challenges, operational status, strategic importance, and future plans for expansion.<\/p>\n","protected":false},"author":5,"featured_media":44825,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[],"class_list":{"0":"post-44824","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/44824","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\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=44824"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/44824\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/44825"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=44824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=44824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=44824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}