In an era defining India’s technological sovereignty, a significant stride emerges: an autonomous GPS system, championed as the Navigation with Indian Constellation, or more conveniently, NavIC. This revolutionary system not only offers real-time positioning and timing services for India but also extends its reach up to 1500 km beyond our national borders.
Crafted by the brilliant minds at ISRO, NavIC, or The Indian Regional Navigation Satellite System, draws its name from the Hindi word ‘naavik,’ a beautiful translation for ‘sailor’ in English. With a fleet of 7 satellites and a network of ground stations operational around the clock, NavIC stands as a testament to Indian innovation and technological prowess. Three of these satellites are present in the geostationary orbit (Circular orbit with an inclination of 0 degrees. Satellites in this orbit appear to stay in the same place in the sky because they move around the Earth at the same speed that the Earth rotates.) and four in the inclined geosynchronous orbit (Circular orbit with an inclination of more than 0 degrees. Satellites in this orbit move around the Earth in a figure-eight pattern, but they still return to the same point on the Earth’s surface once per day.). Integral to these satellites are three rubidium clocks, the essential elements ensuring the system’s precise provision of location data.
NavIC offers two services, catering to both the everyday man with its Standard Position Service and offering a clandestine Restricted Service tailored for military and exclusive applications. Unlike the conventional single-frequency GPS systems, NavIC’s use of dual frequencies sets it apart, ensuring an impressive accuracy range of approximately 5-10 metres. More than just pinpointing locations, NavIC comes prepared with an inbuilt messaging feature, standing ready to dispatch urgent warnings to specific regions in times of crisis.
This system isn’t an isolated entity; it is designed for compatibility and collaboration with other global navigation systems. NavIC aligns seamlessly with navigation stalwarts such as Russia’s Glonass, the EU’s Galileo, China’s BeiDou, and the US Space Force’s GPS.
India’s journey from dependence on external aid for navigation to owning its own comprehensive and cutting-edge navigation system marks a significant milestone in its technological evolution.
Sources:
https://www.isro.gov.in/SatelliteNavigationServices.html
https://timesofindia.indiatimes.com/india/satellites-are-in-the-sky-but-long-way-to-go-before-average-indians-get-desi-gps/articleshow/64506628.cms
