ISRO sets GSLV-F18 and NVS-03 satellite launch to fix navigation network

Launch Details

The Indian Space Research Organisation is scheduled to launch the NVS-03 satellite on October 30, 2026, at 23:51 hours IST. The launch will take place from the Second Launch Pad at the Satish Dhawan Space Centre in Sriharikota.

Mission Objectives

The GSLV-F18 rocket will carry the NVS-03 satellite into a Geosynchronous Transfer Orbit. This mission marks the 20th flight of India's Geosynchronous Satellite Launch Vehicle. NVS-03 is the third satellite in the next-generation navigation system designed to keep navigation services running for the IRNSS series. The satellite carries an indigenous atomic clock along with procured atomic clocks. It also adds an L1 signal to the existing L5 and S signals, with coverage over the Indian landmass and an area extending 1,500 kilometres around the country's geopolitical boundary.

Network Recovery

This launch aims to restore the functioning of India's indigenous satellite navigation system, known as NavIC. The constellation previously weakened because of repeated failures of onboard atomic clocks and the failure to place the earlier replacement satellite, NVS-02, into its proper orbit.

Context

India's NavIC system functions much like global positioning systems, providing vital location and time data for both civilian and strategic use across the region. Maintaining a steady network of satellites in orbit requires reliable atomic clocks to ensure high timing accuracy for positioning services.