
India has reached a significant milestone with the successful completion of the Space Docking Experiment (SpaDeX) by the Indian Space Research Organisation (ISRO). This achievement places India among a select group of nations, including the USA, Russia, and China, that have successfully developed space docking technology. The success highlights India’s progress in space technology and reinforces its position as a key player in global space exploration.
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The mission involved two small satellites, SDX01 and SDX02, which functioned as Chaser and Target, respectively. They were launched aboard the PSLV C60 on December 30, 2024. ISRO scientists at the MOX of the ISTRAC facility executed a meticulously planned procedure to maneuver and dock the satellites in space. This intricate operation required the Chaser satellite to approach the Target satellite and initiate the docking process after establishing a stable connection. Following this, the satellites underwent a rigidisation process to ensure stability during the docking phase. The SpaDeX mission signifies a new chapter for ISRO, showcasing India’s capabilities in spacecraft rendezvous and docking, which are essential for ambitious future missions.
Key highlights of the mission include plans to send Indian astronauts to the Moon, conduct lunar sample-return missions, and develop the Indian Space Station. A notable aspect of the mission was ISRO’s demonstration of electric power transfer between the docked satellites, a crucial feature for in-space robotics, integrated spacecraft operations, and advanced payload management post-undocking.
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After successfully docking and undocking, the satellites will be separated and repurposed for application missions, emphasizing ISRO’s commitment to resource efficiency and sustainability. The success of SpaDeX demonstrates that India is prepared to tackle complex challenges in space exploration and achieve remarkable feats.