This mission is more than a technology test\u2014it directly supports India\u2019s long-term goals such as lunar sample-return missions, deep-space logistics, and the construction of the Bharatiya Antariksh Station (BAS)<\/strong>.<\/p>\n The primary goal of SpaDeX<\/strong> is to validate India\u2019s ability to:<\/p>\n Perform autonomous docking and undocking<\/strong> of spacecraft.<\/p>\n<\/li>\n Demonstrate electrical power transfer<\/strong> between docked satellites.<\/p>\n<\/li>\n Test coordinated control<\/strong> of combined spacecraft during docking.<\/p>\n<\/li>\n Conduct payload operations post-separation<\/strong>.<\/p>\n<\/li>\n<\/ul>\n These milestones are crucial for future space station modules and interplanetary exploration.<\/p>\n Launch Vehicle<\/strong>: PSLV-C60<\/p>\n<\/li>\n Satellites<\/strong>: SDX01 (Chaser) and SDX02 (Target) \u2013 each ~220 kg<\/p>\n<\/li>\n Orbit<\/strong>: Circular orbit at ~470 km altitude<\/p>\n<\/li>\n<\/ul>\n The Chaser gradually approaches the Target through a sequence of maneuvers \u2014 from 20 km down to just a few meters \u2014 using advanced navigation and docking algorithms. After docking, power transfer is tested, followed by undocking and independent payload operations.<\/p>\n ISRO developed several homegrown innovations<\/strong> for SpaDeX:<\/p>\n Low-impact androgynous docking mechanism<\/strong><\/p>\n<\/li>\n Laser range finders<\/strong> and rendezvous sensors<\/strong> for precision navigation<\/p>\n<\/li>\n GNSS-based Relative Orbit Determination and Propagation (RODP)<\/strong> system<\/p>\n<\/li>\n Inter-satellite communication links<\/strong> for real-time coordination<\/p>\n<\/li>\n Advanced guidance algorithms<\/strong> like Glideslope and PV guidance<\/p>\n<\/li>\n<\/ul>\n These technologies will support Chandrayaan-4<\/strong> and other deep-space missions where autonomous docking is essential.<\/p>\n The docking system is compact yet powerful, featuring:<\/p>\n Laser and video-based sensors for different approach stages<\/p>\n<\/li>\n Mechanical entry sensors for docking confirmation<\/p>\n<\/li>\n Compact actuators with reduced footprint but high reliability<\/p>\n<\/li>\n<\/ul>\n This multi-layered sensor suite ensures accuracy across distances ranging from kilometers to centimeters.<\/p>\n After docking and separation, both satellites conduct scientific operations:<\/p>\n SDX01<\/strong>: High-resolution Earth observation camera<\/p>\n<\/li>\n SDX02<\/strong>: Multispectral imager for resource monitoring<\/p>\n<\/li>\n Radiation monitoring experiments for future human spaceflight<\/strong> safety<\/p>\n<\/li>\n<\/ul>\n Designed and developed at UR Rao Satellite Centre (URSC)<\/strong><\/p>\n<\/li>\n Integration support by Ananth Technologies, Bengaluru<\/strong><\/p>\n<\/li>\n Final testing and launch prep at SDSC-SHAR<\/strong><\/p>\n<\/li>\n<\/ul>\n The SpaDeX mission<\/strong> positions India among the few nations with autonomous docking capability<\/strong>. Beyond a demo, it is a foundation for:<\/p>\n Modular space station assembly<\/strong><\/p>\n<\/li>\n Lunar and Mars missions<\/strong><\/p>\n<\/li>\n Future deep-space logistics<\/strong><\/p>\n<\/li>\n<\/ul>\n With SpaDeX, India takes a decisive step toward self-reliance in advanced space operations.<\/p>\n Official Page:\u00a0https:\/\/www.isro.gov.in\/mission_SpaDeX.html<\/a><\/p>\n![\"SpaDex\"](\"https:\/\/www.isro.gov.in\/media_isro\/image\/index\/SPADEX\/spadex_mission_1.png\" "\\"\\"")
Objectives of SpaDeX Mission<\/h2>\n
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Mission Design and Execution<\/h2>\n
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Indigenous Technologies in SpaDeX<\/h2>\n
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Docking Hardware & Sensor Suite<\/h2>\n
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Post-Docking Payloads<\/h2>\n
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Development & Launch Preparation<\/h2>\n
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Conclusion \u2013 India\u2019s Future in Space Docking<\/h2>\n
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