ISRO’s GSLV‑F18 puts 2,250‑kg NavIC satellite NVS‑03 into orbit

The Geosynchronous Satellite Launch Vehicle‑F18 successfully placed the 2,250 kg NVS‑03 navigation satellite into its intended geosynchronous transfer orbit on October 30, 2026. ## Launch Details The GSLV‑F18 lifted off from the second launch pad at Satish Dhawan Space Centre in Sriharikota and, after 18 minutes, injected the payload precisely as planned. ISRO Chairman Dr V Narayanan praised the vehicle systems for performing as predicted and highlighted the 56‑day turnaround as the shortest between successive GSLV missions.

Satellite Capabilities

NVS‑03 is the third satellite in the next‑generation NavIC series and carries an indigenous atomic clock together with procured atomic clocks. It adds an L1 signal to the existing L5/S signals, extending coverage over the Indian landmass and a 1,500 km radius beyond the country’s borders. The mission is designed for a 12‑year operational life.

NavIC Restoration

The launch restores the NavIC constellation to a minimum operational configuration of four satellites, after earlier failures of atomic clocks and the missed orbit insertion of the replacement NVS‑02. With three satellites already functional, the addition of NVS‑03 revives precise positioning, navigation and timing services for both strategic and civilian uses such as real‑time train tracking and vessel monitoring, supporting the One Nation One Time Project.

Context

NavIC is India’s independent regional navigation system, offering accurate PNT services within India and a surrounding 1,500 km region. Restoring the constellation ensures the country retains sovereign access to these critical services without relying on foreign systems.