Title: Indian Regional Navigation Satellite System - Wikipedia
Headings: Indian Regional Navigation Satellite System
Indian Regional Navigation Satellite System
Contents
Background
Development
Time-frame
System description
Space segment
Ground segment
Signal
Accuracy
List of satellites
IRNSS series satellite
Animation of IRNSS
NVS series satellite
Clock failure
Future developments
Global Indian Navigation System (GINS)
See also
References
Footnotes
External links

Content: NavIC based trackers are compulsory on commercial vehicles in India and it is planned to become available in consumer mobile phones in the first half of 2020. There are plans to expand the NavIC system by increasing its constellation size from 7 to 11. Contents
1 Background
2 Development
3 Time-frame
4 System description
4.1 Space segment
4.2 Ground segment
4.3 Signal
4.4 Accuracy
5 List of satellites
5.1 IRNSS series satellite
5.2 NVS series satellite
6 Clock failure
7 Future developments
7.1 Global Indian Navigation System (GINS)
8 See also
9 References
9.1 Footnotes
10 External links
Background
The system was developed partly because access to foreign government-controlled global navigation satellite systems is not guaranteed in hostile situations, as happened to the Indian military in 1999 when United States denied the Indian request for Global Positioning System (GPS) data for the Kargil region which would have provided vital information. The Indian government approved the project in May 2013. As per National Defense Authorization Act (NDAA) 2020, United States Secretary of Defense in consultation with Director of National Intelligence will designate NavIC, Galileo and QZSS as allied navigational satellite system. Development
As part of the project, the Indian Space Research Organisation (ISRO) opened a new satellite navigation centre within the campus of ISRO Deep Space Network (DSN) at Byalalu, in Karnataka on 28 May 2013. A network of 21 ranging stations located across the country will provide data for the orbital determination of the satellites and monitoring of the navigation signal. A goal of complete Indian control has been stated, with the space segment, ground segment and user receivers all being built in India. Its location in low latitudes facilitates a coverage with low- inclination satellites. Three satellites will be in geostationary orbit over the Indian Ocean.