ISRO to Launch 3 More Navigation NavIC Satellites by 2026

The Indian Space Research Organisation (ISRO) is set to launch three more navigation satellites — NVS-03, NVS-04, and NVS-05 — by 2026 to strengthen India’s regional navigation system, NavIC (Navigation with Indian Constellation). This will enhance India’s independent navigation capabilities for both civilian and military applications.

Background

NavIC, earlier known as the Indian Regional Navigation Satellite System (IRNSS), is India’s autonomous regional navigation satellite system. It was developed to reduce dependence on foreign GPS systems and provide accurate navigation services across India and 1,500 km beyond its borders. The system consists of 7 satellites, supported by a network of ground stations operating round the clock.

Significance

NavIC is a cornerstone of India’s strategic autonomy in space technology. It ensures secure navigation services for defense and disaster management while offering reliable solutions for civilian needs. By enhancing its constellation with the NVS series, India will not only improve navigation accuracy but also expand its technological leadership in the region.

Objectives

The main aim of the new launches is to augment the existing NavIC constellation with second-generation satellites. These will improve the reliability, coverage, and accuracy of the system, ensuring uninterrupted services for critical sectors such as defense, transportation, disaster management, and infrastructure.

Key Features of NavIC

• Constellation of 7 satellites (3 in geostationary and 4 in inclined geosynchronous orbit).
• Provides Standard Positioning Service (SPS) for civilians and Restricted Service (RS) for strategic use.
• Offers location accuracy better than 20 meters and timing accuracy within 40 nanoseconds in its core area.
• Ground network includes control centres, timing facilities, and monitoring stations.
• Currently, only 4 out of 7 satellites are fully functional, making the NVS launches crucial.

The NVS Series

1. The NVS satellites (NVS-01 to NVS-05) are second-generation NavIC satellites.
2. NVS-01 was launched in 2023 with an indigenous atomic clock, a first for India.
3. NVS-02 was launched in January 2025.
4. The upcoming NVS-03, NVS-04, and NVS-05 will incorporate the L1 band to improve compatibility with global navigation devices, making NavIC more user-friendly for smartphones and other consumer technologies.

Impact

The strengthened NavIC system will support a wide range of applications — from strategic military uses to shipping vessel tracking, railway safety, time synchronization, disaster alerts, and navigation services. It will also reduce India’s reliance on foreign GPS, enhance technological self-reliance, and improve the ecosystem of personal navigation devices (PNDs) across the country.