NavIC Satellite IRNSS-1F Loses Atomic Clock
On 13th March 2026, Indian Space Research Organisation(ISRO) announced that the atomic clock onboard navigation satellite IRNSS-1F has stopped functioning.
- As a result, the satellite can no longer provide positioning data for India’s regional navigation system NavIC.
What is IRNSS/NavIC?
- IRNSS (Indian Regional Navigation Satellite System), also called NavIC (Navigation with Indian Constellation).
- India’s regional satellite navigation system, similar to the US GPS.
- Designed to provide positioning data over India and about 1,500 km beyond its borders.
- Provides location accuracy of about 10 metres over the Indian region.
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Applications of NavIC
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