ISRO successfully places NVS-03 navigation satellite into its target orbit

UPDATE - follow-up to GSLV-F18 carrying NVS-03 lifts off from Satish Dhawan Space Centre | LIVE: The GSLV-F18 mission has successfully delivered the NVS-03 navigation satellite into its designated orbit. This launch marks ISRO's third space flight of the year 2026, using a rocket that lifted off from the Second Launch Pad at Sriharikota.

Orbit Placement

The heavy satellite, weighing 2,250 kilograms, was deployed into its initial Geosynchronous Transfer Orbit roughly 18 minutes and 40 seconds after flight. Mission controllers then used the craft's built-in thrusters to push it further up into the final operational path. This new addition features an Indian-made atomic clock alongside imported ones, plus a new L1 signal to join the existing L5 and S-band frequencies.

Fleet Recovery

India's NavIC system has faced severe hurdles due to ageing hardware and past mission gaps. Out of an older fleet of 11 units, government data shows only three craft currently handle core duties, and one of those has already crossed its planned ten-year working life. Another recent unit, NVS-02 launched in January 2025, failed to raise its path when its engines did not fire. Experts note that ISRO needs at least four functional units to restore basic services, and up to seven for stable, long-term coverage.

Context

NavIC acts as India's home-grown alternative to global systems like the American GPS or the Chinese BeiDou network. Building an independent space-based positioning network requires frequent, reliable rocket flights to replace ageing hardware before older units stop working.