Indian Regional Navigation Satellite System (IRNSS) : Recently, in a move to strengthen India’s indigenous navigation capabilities, the Indian Space Research Organisation (ISRO) announced plans to launch three new satellites for the Indian Regional Navigation Satellite System (IRNSS) by 2026.
o The first satellite in the upcoming series, NVS-03, is scheduled for launch by the end of 2025. The subsequent satellites, NVS-04 and NVS-05, are expected to follow in six-month intervals, bringing the navigation fleet closer to its intended capacity.
o Aims to reduce reliance on foreign satellite navigation systems, particularly in strategic and defence sectors.
o Ground Segment: Includes control centres, monitoring stations, timing facilities, and ranging stations.
o Service Area: Primary: India and region up to 1500 km from its borders.
- Extended: Between 30° S to 50° N latitude and 30° E to 130° E longitude.
o Services Provided: Standard Positioning Service (SPS) – for all users.
- Restricted Service (RS) – encrypted, for authorised users only.
o Civilian Utility: Supports accurate navigation for aviation, transport, maritime, agriculture, and public services.
o Disaster Management: Aids in real-time location tracking for effective disaster response and risk reduction.
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