{"id":10504,"date":"2026-03-16T12:17:04","date_gmt":"2026-03-16T06:47:04","guid":{"rendered":"https:\/\/www.class24.study\/exams\/?p=10504"},"modified":"2026-03-17T09:37:50","modified_gmt":"2026-03-17T04:07:50","slug":"navic-irnss1f-satellite-navigation-system-setback","status":"publish","type":"post","link":"https:\/\/www.class24.study\/current-affairs\/navic-irnss1f-satellite-navigation-system-setback\/","title":{"rendered":"NavIC Setback: IRNSS-1F Satellite Stops Navigation Services"},"content":{"rendered":"<p><span style=\"font-weight: 400\">India\u2019s indigenous satellite navigation system NavIC has encountered a major setback after the IRNSS-1F satellite ceased supporting navigation services. NavIC (Navigation with Indian Constellation) is developed by the Indian Space Research Organisation to offer accurate positioning and timing services across India and neighbouring regions. The IRNSS-1F satellite was a crucial component of this regional navigation constellation. Its failure to support navigation signals has raised concerns about the system&#8217;s operational robustness and the urgency of satellite replacements. Experts believe that maintaining a strong and fully operational constellation is vital for strategic, civilian, and commercial navigation applications.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Impact of IRNSS-1F Satellite Failure on NavIC Navigation System<\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The IRNSS-1F satellite is part of India\u2019s regional navigation constellation under the NavIC programme, which aims to provide independent and reliable positioning services for India and nearby regions.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The satellite was launched in 2016 as part of the Indian Regional Navigation Satellite System constellation, designed to ensure accurate navigation without relying on foreign systems.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">With IRNSS-1F no longer supporting navigation services, the total number of fully operational satellites in the constellation may be reduced, potentially affecting signal strength and redundancy.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">NavIC plays an important role in strategic sectors such as defence navigation, disaster management, vehicle tracking, and maritime operations.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The system is also expected to support civilian uses like smartphone navigation, fleet management, and mapping services across India.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The setback highlights the importance of maintaining backup satellites and planning timely replacements to ensure uninterrupted services.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">India has been actively working to strengthen NavIC by launching replacement satellites and improving signal compatibility with modern devices.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Despite this challenge, experts believe that India\u2019s space programme, led by the Indian Space Research Organisation, can restore full functionality through future satellite launches and system upgrades.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400\">Previous Year Questions on ISRO\u2019s Satellite<\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>Exam<\/b><\/td>\n<td><b>Year<\/b><\/td>\n<td><b>Question<\/b><\/td>\n<td><b>Answer<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC CGL<\/span><\/td>\n<td><span style=\"font-weight: 400\">2019<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which was India\u2019s first satellite launched into space? (A) Rohini (B) Aryabhata (C) Bhaskara (D) INSAT<\/span><\/td>\n<td><span style=\"font-weight: 400\">Aryabhata<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC MTS<\/span><\/td>\n<td><span style=\"font-weight: 400\">2019<\/span><\/td>\n<td><span style=\"font-weight: 400\">India launched its first satellite in 1975. What was its name? (A) Rohini (B) Aryabhata (C) APPLE(D) INSAT-1A<\/span><\/td>\n<td><span style=\"font-weight: 400\">Aryabhata<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">RRB NTPC<\/span><\/td>\n<td><span style=\"font-weight: 400\">2016<\/span><\/td>\n<td><span style=\"font-weight: 400\">In 1981, which satellite was launched by ISRO as India\u2019s first experimental geostationary communication satellite? (A) Aryabhata (B) APPLE (C) Bhaskara-II (D) INSAT-1B<\/span><\/td>\n<td><span style=\"font-weight: 400\">APPLE<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC CHSL<\/span><\/td>\n<td><span style=\"font-weight: 400\">2018<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which Indian satellite discovered evidence of water molecules on the Moon? (A) Chandrayaan-1 (B) Chandrayaan-2 (C) Mangalyaan (D) Astrosat<\/span><\/td>\n<td><span style=\"font-weight: 400\">Chandrayaan-1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">RRB Group-D<\/span><\/td>\n<td><span style=\"font-weight: 400\">2018<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which ISRO mission successfully entered Mars orbit in 2014? (A) Chandrayaan-1 (B) Chandrayaan-2 (C) Mangalyaan (D) Gaganyaan<\/span><\/td>\n<td><span style=\"font-weight: 400\">Mangalyaan<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC GD<\/span><\/td>\n<td><span style=\"font-weight: 400\">2022<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which satellite navigation system has been developed by India? (A) Galileo (B) NavIC (C) GLONASS (D) BeiDou<\/span><\/td>\n<td><span style=\"font-weight: 400\">NavIC<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">RRB NTPC<\/span><\/td>\n<td><span style=\"font-weight: 400\">2020<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which is India\u2019s first dedicated astronomy satellite launched by ISRO? (A) Cartosat-2 (B) GSAT-7 (C) Astrosat (D) INSAT-3D<\/span><\/td>\n<td><span style=\"font-weight: 400\">Astrosat<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC CGL<\/span><\/td>\n<td><span style=\"font-weight: 400\">2017<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which satellite was the first launched by India using an Indian launch vehicle? (A) Aryabhata (B) Rohini (C) Bhaskara (D) INSAT-1A<\/span><\/td>\n<td><span style=\"font-weight: 400\">Rohini<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">RRB ALP<\/span><\/td>\n<td><span style=\"font-weight: 400\">2019<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which ISRO mission is associated with the study of the Sun? (A) Chandrayaan-1 (B) Mangalyaan (C), Astrosat (D), Aditya-L1<\/span><\/td>\n<td><span style=\"font-weight: 400\">Aditya-L1<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">SSC CHSL<\/span><\/td>\n<td><span style=\"font-weight: 400\">2020<\/span><\/td>\n<td><span style=\"font-weight: 400\">Which ISRO satellite series is mainly used for mapping and earth observation? (A) Cartosat (B) INSAT (C) GSAT (D) Kalpana<\/span><\/td>\n<td><span style=\"font-weight: 400\">Cartosat<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-10770\" src=\"https:\/\/www.class24.study\/current-affairs\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-Mar-16-2026-02_50_39-PM-300x200.png\" alt=\"\" width=\"549\" height=\"366\" srcset=\"https:\/\/www.class24.study\/current-affairs\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-Mar-16-2026-02_50_39-PM-300x200.png 300w, https:\/\/www.class24.study\/current-affairs\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-Mar-16-2026-02_50_39-PM-1024x683.png 1024w, https:\/\/www.class24.study\/current-affairs\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-Mar-16-2026-02_50_39-PM-768x512.png 768w, https:\/\/www.class24.study\/current-affairs\/wp-content\/uploads\/2026\/03\/ChatGPT-Image-Mar-16-2026-02_50_39-PM.png 1536w\" sizes=\"(max-width: 549px) 100vw, 549px\" \/><\/p>\n<p><a href=\"https:\/\/www.class24.study\/current-affairs\/india-supreme-court-allows-first-passive-euthanasia-case\">India\u2019s Supreme Court Allows First-Ever Passive Euthanasia Death<\/a><\/p>\n<h2><span style=\"font-weight: 400\">Conclusion (IRNSS-1F Satellite Failure Impacts NavIC System)<\/span><\/h2>\n<p><span style=\"font-weight: 400\">The failure of the IRNSS-1F satellite highlights the challenges of maintaining a reliable navigation constellation. As part of India\u2019s NavIC system, such setbacks underline the need for timely satellite replacements and technological upgrades. Strengthening the satellite network will be crucial to ensure uninterrupted navigation services and to maintain India\u2019s strategic and technological independence in space-based navigation.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>India\u2019s indigenous satellite navigation system NavIC has encountered a major setback after the IRNSS-1F satellite ceased supporting navigation services. NavIC (Navigation with Indian Constellation) is developed by the Indian Space Research Organisation to offer accurate positioning and timing services across India and neighbouring regions. The IRNSS-1F satellite was a crucial component of this regional navigation [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":10505,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[20],"tags":[],"class_list":["post-10504","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/posts\/10504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/comments?post=10504"}],"version-history":[{"count":2,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/posts\/10504\/revisions"}],"predecessor-version":[{"id":10771,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/posts\/10504\/revisions\/10771"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/media\/10505"}],"wp:attachment":[{"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/media?parent=10504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/categories?post=10504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.class24.study\/current-affairs\/wp-json\/wp\/v2\/tags?post=10504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}