NavIC

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The Navigation with Indian Constellation or NavIC (also, nāvik 'sailor' or 'navigator' in Indian languages, formerly known as the Indian Regional Navigation Satellite System or IRNSS) is an autonomous regional satellite navigation system that provides accurate real-time positioning, velocity and timing (PVT) services. It covers India and a region extending 1,500 km (930 mi) around it, with plans for further extension up to 3,000 km (1,900 mi) with 10–20 m (33–66 ft) position accuracy and 40ns time accuracy. An extended service area lies between the primary service area and a rectangle area enclosed by the 30th parallel south to the 50th parallel north and the 30th meridian east to the 130th meridian east, 1,500–6,000 km (930–3,730 mi) beyond borders where some of the NavIC satellites are visible but the position is not always computable with assured accuracy.

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