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ISRO Plans Satellite Revamp After Atomic Clock Failure

3/16/2026

37 9 Full Breakdown

Summary

Story summary

The Indian Space Research Organisation (ISRO) announced the failure of the last atomic clock on the IRNSS-1F satellite, launched in 2016, ending its 10-year mission and leaving NavIC with three functioning satellites.
The IRNSS system is regional and serves as a backup in case of global conflicts.
ISRO plans to replace satellites with new ones bearing rubidium clocks to address aging fleet, with at least three launches by 2026.

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Story summary

The Indian Space Research Organisation (ISRO) announced the failure of the last atomic clock on the IRNSS-1F satellite, launched in 2016, ending its 10-year mission and leaving NavIC with three functioning satellites.
The IRNSS system is regional and serves as a backup in case of global conflicts.
ISRO plans to replace satellites with new ones bearing rubidium clocks to address aging fleet, with at least three launches by 2026.