Indian Regional Navigation Satellite System:
ISRO will launch three navigation satellites for its Indian Regional Navigation Satellite System (IRNSS) by 2026.
- It is India’s independent regional navigation satellite system also known as NavIC (Navigation with Indian Constellation).
- It is developed in India by the Indian Space Research Organisation (ISRO).
- IRNSS envisages the establishment of a regional navigational satellite system using a combination of geosynchronous orbit (GEO) and geostationary orbit (GSO) spacecraft and state-of-the-art ground systems.
- IRNSS-NavIC is designed to provide accurate position information service to users in India and the region extending up to 1500 km from its boundary.
- IRNSS-NavIC network: NavIC is designed with a constellation of seven satellites and a network of ground stations operating around the clock.
- Three satellites are placed in GSO.
- Four satellites are placed in inclined GEO.
- IRNSS provides two types of services, namely:
- Standard Positioning Service(SPS) – that is provided to all users.
- Restricted Service(RS) – an encrypted service provided only to authorised users.
- The signals of the other global navigation satellite systems (GNSS), including GPS, GLONASS, Galileo, and BeiDou provide interoperability with those of the NavIC SPS signals.
