India’s NVS-03 Satellite Reaches Orbit, Boosting NavIC

At 11:51 pm on October 30, ISRO’s GSLV-F18 lifted off from Sriharikota. Less than half an hour later, the space agency reported that the rocket had placed NVS-03 in its intended orbit. The successful deployment clears a key hurdle for a satellite meant to help India restore its own navigation service. ^1,3

That orbit is the start, not the end, of NVS-03’s journey. The satellite will use its onboard propulsion system to move from its transfer orbit toward its assigned position. It is the third satellite in ISRO’s second-generation NavIC series, and the GSLV flight was the programme’s 20th. NVS-03 carries an Indian-made atomic clock alongside purchased clocks, and adds the L1 signal to NavIC’s existing L5 and S-band signals. ^3,4

Those new features matter because satellite and clock failures had weakened NavIC. Before this launch, three satellites were providing location, navigation and timing services, leaving the system unable to provide location services on its own. NavIC covers India and a region about 1,500 kilometres beyond its borders, and supports uses from transport and sea navigation to disaster response. Unlike global GPS, it gives India a navigation system it can run independently. ^5,9

That independent service is not restored simply because NVS-03 reached orbit. ISRO must move the satellite into its assigned position, put it into service and check its signals before the system can provide the intended service. NVS-02, launched in January 2025, failed to reach its final orbit after a propulsion problem, so ISRO changed how NVS-03’s propulsion valves are activated to address that issue. ^3,9