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The Indian Space Research Organization(ISRO) has announced the successful de-docking of its Space Docking Experiment (SpaDeX) today, marking a significant step towards future missions like Chandrayaan-4. In a post on X (formerly Twitter), ISRO outlined the key stages of the experiment, including the SDX-2 extension, the planned release of capture lever 3, the disengagement of the capture lever in SDX-3, and the de-capture command for both satellites.
Spadex undocking captured from both SDX-1 & SDX-2! 🛰️🛰️🎥
Watch the spectacular views of this successful separation in orbit.
Congratulations to India on this milestone! 🇮🇳✨ #Spadex#ISRO#SpaceTechpic.twitter.com/7u158tgKSG
— ISRO (@isro)
Spadex undocking captured from both SDX-1 & SDX-2! 🛰️🛰️🎥
Watch the spectacular views of this successful separation in orbit.
Congratulations to India on this milestone! 🇮🇳✨ #Spadex#ISRO#SpaceTechpic.twitter.com/7u158tgKSG— ISRO (@isro) March 13, 2025
">March 13, 2025
Union Minister of Science and Technology Dr. Jitendra Singh praised ISRO's achievement, stating, “Congrats team ISRO. And heartening for every Indian! SPADEX Satellites accomplished the unbelievable De-Docking.”
He further emphasized that this success will facilitate upcoming missions such as the Bharatiya Antriksha Station, Chandrayaan-4, and Gaganyaan, crediting Prime Minister Narendra Modi’s support for boosting morale.
Congrats team #ISRO. And heartening for every Indian 🇮🇳 !#SPADEX Satellites accomplished the unbelievable De-Docking… This paves the way for smooth conduct of ambitious future missions including the Bharatiya Antriksha Station, Chandrayaan 4 & Gaganyaan. PM Sh @narendramodi’s…
— Dr Jitendra Singh (@DrJitendraSingh)
Congrats team #ISRO. And heartening for every Indian 🇮🇳 !#SPADEX Satellites accomplished the unbelievable De-Docking… This paves the way for smooth conduct of ambitious future missions including the Bharatiya Antriksha Station, Chandrayaan 4 & Gaganyaan. PM Sh @narendramodi’s…
— Dr Jitendra Singh (@DrJitendraSingh) March 13, 2025
">March 13, 2025
Launched on December 30, 2024 from the Satish Dhawan Space Centre (SDSC), the SpaDeX mission involved two satellites, SDX-01 (Chaser) and SDX-02 (Target), which docked on January 16. With this accomplishment, India joins the United States, Russia, and China as the fourth nation to achieve successful space docking.
Also Read: ISRO achieves another milestone with satellite docking technology
ISRO Chairman V. Narayanan previously mentioned that additional experiments related to the mission would commence on March 15. The unified satellite currently orbits elliptically, providing a 10–15 day window every two months for testing.
Designed as a cost-effective initiative, SpaDeX demonstrates space docking with two small spacecraft launched via a PSLV rocket, aiding future multi-launch missions aimed at achieving a common goal.
