What is it?
- It is an autonomous regional satellite navigation system established and maintained by ISRO.
Coverage
- It covers India and a region extending up to 1,500 km beyond Indian mainland (primary coverage area) with plans of extension.
Satellites
- The system currently consists of a constellation of seven satellites, with two additional satellites on ground as stand-by.
- Three of the seven satellites in constellation are located in geostationary orbit (GEO) and four in inclined geosynchronous orbit (IGSO).
Accuracy
- The system is intended to provide an absolute position accuracy of better than 10 metres throughout Indian landmass and better than 20 metres in the Indian Ocean.
Recognitions
- It was recognised by the International Maritime Organization (IMO) as a part of the World-Wide Radio Navigation System (WWRNS) for operation in the Indian Ocean Region in 2020.