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Question

Which ISRO mission, successfully completed in January 2025, demonstrated autonomous docking between two satellites?

This question was previously asked in
RRB NTPC 2024 CBT 1 Question Paper (28-Aug-2025) (Shift 3)
The correct answer is
SPADEX

ISRO Mission: Autonomous Satellite Docking

The question asks to identify the ISRO mission that successfully demonstrated autonomous docking between two satellites, completing in January 2025.

SPADEX Mission Focus

SPADEX (Spacecraft for Autonomous Dual-satellite Experiment) is the ISRO mission designed specifically for autonomous rendezvous and docking. This involves two spacecraft automatically approaching and connecting in orbit.

  • Core Technology: Autonomous docking and rendezvous.
  • Projected Completion: January 2025 (as stated).

Evaluating Other ISRO Missions

The provided alternatives represent different ISRO objectives:

  • Gaganyaan: Focuses on human spaceflight to send astronauts to space.
  • Chandrayaan-3: Aimed at lunar exploration, including soft landing on the Moon.
  • Aditya-L1: Dedicated to observing the Sun from a halo orbit.

These missions do not involve autonomous docking between satellites as their primary goal.

Conclusion: SPADEX

Based on its defined objective, SPADEX is the mission that fits the description of demonstrating autonomous docking between two satellites.

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