Indian Regional Navigational Satellite System (IRNSS) and How does it help in navigation
Indian Regional Navigational Satellite System (IRNSS), operational name Navigation with Indian constellation (NavIC), is an indigenously developed autonomous regional satellite navigation system that provides accurate real-time positioning and timing services. It covers India and a region extending 1500 km around it, with plans for future expansion. It is expected to have on accuracy better than 20m. Needs for IRNSS : •In its absence, India had to depend on satellite systems of other countries rendering it vulnerable especially in the case of hostile situations. •The immediate reason to start building indigenous navigation capabilities was the Kargil War in 1999, when USA denied India access to vital satellite based information. •With India becoming only the sixth country in the world to have its own navigation system, it is going to improve its standing in the comity of nations. •Allowing the neighbouring countries to access the system, India is also proje...