NavIC satellite loses its atomic clock, Explained | Ankit Agrawal Study IQ

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NavIC satellite loses its atomic clock, Explained | Ankit Agrawal Study IQ

In this video, Ankit Agrawal explains the recent major setback for India’s indigenous navigation system, NavIC (Navigation with Indian Constellation). On March 13, 2026, the last atomic clock on the IRNSS-1F satellite failed, leaving the entire system below the minimum operational threshold.

What you will learn in this video:
The Incident: Why the IRNSS-1F atomic clock failure is a critical blow to ISRO.
The 4-Satellite Rule: Why NavIC needs at least 4 satellites to function and why having only 3 operational satellites makes it "nearly defunct."
The History of Failures: A look at the imported Swiss atomic clocks vs. India's new indigenous Rubidium clocks.
Strategic Impact: How this affects India's maritime security, railways, and civilian navigation.
The Way Forward: ISRO's plans for the NVS-series and the future of "Atmanirbhar" navigation.

This deep dive is essential for UPSC aspirants, science and technology enthusiasts, and anyone following India's space journey.

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