{"id":44448,"date":"2025-01-09T09:45:07","date_gmt":"2025-01-09T04:15:07","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=44448"},"modified":"2025-05-06T11:29:08","modified_gmt":"2025-05-06T05:59:08","slug":"isro-postpones-spadex-mission","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/isro-postpones-spadex-mission\/","title":{"rendered":"ISRO Postpones SpaDex Mission"},"content":{"rendered":"<h2><strong>What\u2019s in Today\u2019s Article?<\/strong><\/h2>\n<ul>\n<li>What does Docking in Space Mean?<\/li>\n<li>SpaDex Mission Overview<\/li>\n<li>Challenges and Postponement of the SpaDex Mission<\/li>\n<li>Docking Procedure in the SpaDex Mission<\/li>\n<li>Future Applications of the SpaDex Mission<\/li>\n<li>Conclusion<\/li>\n<\/ul>\n<h2><strong>Why in News?<\/strong><\/h2>\n<ul>\n<li>The Indian Space Research Organisation (ISRO) has once again postponed its ambitious Space Docking Experiment (SpaDex) mission after encountering unexpected satellite drift during a critical maneuver.<\/li>\n<li>The mission aims to establish India as the fourth country (after the US, Russia and China) globally with space docking capabilities, crucial for future complex space missions.<\/li>\n<\/ul>\n<h2><strong>What does Docking in Space Mean?<\/strong><\/h2>\n<ul>\n<li><strong>Two space objects coming and joining together for a purpose is called \u2018docking\u2019.<\/strong><\/li>\n<li>&#8220;Docking&#8221; happens when a spacecraft can maneuver and attach to a space station by itself.<\/li>\n<li>The National Aeronautics and Space Administration (NASA) defines docking as \u201cmating operations where an active vehicle flies into the mating interface under its own power\u201d.<\/li>\n<li>Meanwhile, ISRO explains that in-space docking technology is <strong>useful when multiple rockets are launched into space to achieve common mission objectives<\/strong>.<\/li>\n<li><strong>For example<\/strong>, on the International Space Station (ISS), when a crew module connects to the station, <strong>pressure is equalised and the people are transferred<\/strong>.<\/li>\n<\/ul>\n<h2><strong>SpaDex Mission Overview:<\/strong><\/h2>\n<ul>\n<li><strong>Purpose of SpaDex mission:<\/strong>\n<ul>\n<li><strong>Docking and undocking technology:<\/strong> Demonstrates India\u2019s ability to dock two satellites in space, paving the way for future projects involving modular spacecraft assembly.<\/li>\n<li><strong>Significance: <\/strong>Critical for heavy-payload missions like the <strong>Bharatiya Antariksha Station<\/strong> (planned for 2028) and the <strong>Chandrayaan-4 mission<\/strong>, which involves lunar sample retrieval.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Satellite details [Chaser (SDX01) and Target (SDX02)]:<\/strong> Launched on December 30, 2024, aboard the PSLV C60 rocket from Sriharikota.<\/li>\n<\/ul>\n<h2><strong>Challenges and Postponement of the SpaDex Mission:<\/strong><\/h2>\n<ul>\n<li><strong>Unexpected satellite drift:<\/strong>\n<ul>\n<li>The satellites drifted more than expected during a maneuver to reduce their distance from 500m to 225m.<\/li>\n<li>The issue was identified after a non-visibility period when satellites were out of tracking range.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Safety measures: <\/strong>Both satellites remain safe, according to ISRO\u2019s statement. Further ground simulations are required to enhance accuracy.<\/li>\n<li><strong>Timeline adjustments: <\/strong>Initial docking scheduled for January 7, postponed to January 9 for additional ground simulations.<\/li>\n<\/ul>\n<h2><strong>Docking Procedure in the SpaDex Mission:<\/strong><\/h2>\n<ul>\n<li><strong>Stepwise approach:<\/strong>\n<ul>\n<li><strong>Distance reduction:<\/strong> Sequential halts planned at 225m, 15m, and 3m before final docking.<\/li>\n<li><strong>Docking mechanism:<\/strong> Extended rings on both satellites will connect, followed by rigidization to secure the connection.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Integration and testing: <\/strong>Power sharing between satellites and synchronized command control as one unit will be tested.<\/li>\n<\/ul>\n<h3><strong>Future Applications of the SpaDex Mission:<\/strong><\/h3>\n<ul>\n<li><strong>Modular space station assembly: <\/strong>Enables assembly of heavy payloads in space, crucial for building the Bharatiya Antariksha Station.<\/li>\n<li><strong>Chandrayaan-4 mission: <\/strong>Facilitates docking of the transfer module carrying lunar samples with the re-entry module in Earth\u2019s orbit.<\/li>\n<li><strong>Strategic importance: <\/strong>Achieving docking capabilities positions India alongside the US, Russia, and China in advanced space technology.<\/li>\n<\/ul>\n<h2><strong>Conclusion:<\/strong><\/h2>\n<ul>\n<li>ISRO\u2019s SpaDex mission is a significant step toward enhancing India\u2019s space exploration capabilities.<\/li>\n<li>Despite the postponement, the mission underscores India\u2019s commitment to mastering complex technologies necessary for future space endeavors.<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>Q.1. What is the Chandrayaan-4 mission?<\/strong><\/h3>\n<p>The union cabinet has approved the mission to the moon, named Chandrayaan-4 to develop and demonstrate the technologies to come back to Earth after successfully landing on the Moon and also collect moon samples and analyse them on Earth.<\/p>\n<h3><strong>Q.2. What is the Bharatiya Antariksha Station (BAS)?<\/strong><\/h3>\n<p>The BAS, also known as India&#8217;s Space Station, is a planned space station that will be operated by the ISRO.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/indianexpress.com\/article\/cities\/delhi\/isro-postpones-spadex-docking-satellite-drift-9767734\/\" target=\"_blank\" rel=\"nofollow noopener\">IE<\/a> | <a href=\"https:\/\/www.livemint.com\/science\/isro-spadex-mission-what-does-docking-in-space-mean-11735633084043.html\" target=\"_blank\" rel=\"nofollow noopener\">LM<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ISRO has once again postponed its ambitious Space Docking Experiment (SpaDex) mission after encountering unexpected satellite drift during a critical maneuver<\/p>\n","protected":false},"author":5,"featured_media":44449,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[],"class_list":{"0":"post-44448","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\/44448","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=44448"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/44448\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/44449"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=44448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=44448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=44448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}