Space Docking

India becomes the 4th country (after the US, Russia, and China) to successfully demonstrate in-space docking capability .

Mission : PSLV-C60/SpaDeX (Space Docking Experiment) launched on December 31, 2023 , from Satish Dhawan Space Centre, Sriharikota.

  • PM Modi highlighted it as a "significant stepping stone" for India’s space ambitions.

What is Space Docking?

  • Space docking is the process of joining two spacecraft together in orbit. It is a critical operation for space missions involving crew transfers, resupply missions, and space station operations.

Examples

  • Apollo-Soyuz Test Project (1975) – First international docking between the U.S. and Soviet Union.
  • ISS Dockings – Regular docking of SpaceX Dragon, Russian Soyuz, and other spacecraft.
  • Lunar Gateway (Future Mission) – A planned space station orbiting the Moon requiring frequent dockings.

Indigenous "Bharatiya Docking System" developed by ISRO

In a walkthrough of the SpaDeX docking process, ISRO said manoeuvres from the 15 m to the 3m hold point were completed. Docking was initiated with precision, leading to successful spacecraft capture.

Strategic Significance

  • Future Missions :
    • Bharatiya Antariksh Station (India’s planned space station).
    • Chandrayaan-4 (lunar sample return mission).
    • Gaganyaan (India’s human spaceflight pr ogram).
  • Enables in-orbit servicing, space logistics, and crew transfer missions .

Practice Questions for Mains

  • Q. “Space docking capability is a game-changer for India’s space economy.” Critically analyze this statement in the context of ISRO’s recent achievements.