ExplainersExplainerVerified
Explained: what NVS-03 adds to NavIC, India’s own satellite navigation system
GSLV-F18 placed the third second-generation navigation satellite in orbit on 30 October; two more are in the pipeline.
India's third second-generation navigation satellite, NVS-03, is in orbit after ISRO's GSLV-F18 lifted off from Sriharikota late on 30 October. This explainer, based on a PIB backgrounder, sets out what the launch adds to NavIC, the country's own satellite navigation system.
The mission
The Indian Space Research Organisation (ISRO) launched GSLV-F18 at 23:51 hours on 30 October 2026 from the Satish Dhawan Space Centre. The rocket placed NVS-03 in the intended Geosynchronous Transfer Orbit. The first orbit manoeuvre was completed at 16:48 hours on 31 October, and more are planned to reach its slot at 111.75° East.
It was the 20th flight of the Geosynchronous Satellite Launch Vehicle. The rocket is about 50 metres tall with a lift-off mass of around 420 tonnes, and it carried the roughly 2,250 kg satellite. For the orbit-raising, NVS-03 uses a Liquid Apogee Motor.
What NVS-03 brings
NVS-03 is the third of five planned satellites in the NVS series. It carries navigation payloads in the L1, L5 and S bands; the L1 signal is added to the older L5 and S signals. Coverage extends across the Indian landmass and up to 1,500 km beyond its geopolitical boundary.
The satellite carries an indigenously developed atomic clock alongside procured ones. Accurate timing is essential for working out signal travel times and user positions.
About NavIC
NavIC offers two services: an open Standard Positioning Service for civilians, whose signals are interoperable with GPS, Glonass, Galileo and BeiDou, and an encrypted Restricted Service for strategic users.
The series so far
- NVS-01: launched 29 May 2023 on GSLV-F12, with a 12-year mission life.
- NVS-02: launched 29 January 2025 on GSLV-F15. The oxidiser valves did not open, so it could not reach its intended orbital slot.
- NVS-03: launched 30 October 2026.
- NVS-04 and NVS-05: planned, and expected to carry L1 as well.
The backgrounder does not give launch dates for NVS-04 and NVS-05.
Source: official release by the PIB Backgrounder, issued through the Press Information Bureau, Government of India (01 NOV 2026 11:23AM by PIB Delhi). Read the full official text: Strengthening India’s Indigenous Navigation Capabilities.
How we verified this
VerifiedEvery fact, figure and quotation is taken from the official PIB release (Release ID 2331077) issued by the PIB Backgrounder on 01 NOV 2026 11:23AM by PIB Delhi; checked against the source on publication. Story written by BDT from that release; no outside facts added.
Sources
- 1.Strengthening India’s Indigenous Navigation Capabilities — Press Information Bureau, Government of India
