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Space Docking
Context
ISRO successfully undocked two satellites in space, nearly two months after its first docking mission (Spadex). This makes India the fourth country (after the US, Russia, and China) to achieve docking-undocking capabilities.
What is Space Docking?
- Docking is the process of bringing two fast-moving spacecraft into the same orbit, moving them closer, and finally joining them together.
- It is essential for missions involving heavy spacecraft, space stations, and sample return missions.
- Why is Docking-Undocking Important?
- It enables assembly of large spacecraft in orbit (reducing launch weight constraints).
- It is critical for space stations (India plans to have its own space station by 2035).
- It is essential for lunar missions (e.g., Chandrayaan-4’s sample return mission).
- It supports human spaceflight missions (India aims to send astronauts to the Moon by 2040
- Unique ISRO’s Docking System
- Androgynous design (both satellites have identical docking mechanisms).
- Uses only two motors, unlike the 24-motor system on the International Space Station (ISS).
India’s Spadex Mission
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