Indian Global Positioning System (Download PDF)

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Indian Space Research Organisation (ISRO) deployed an indigenous regional positioning system- “Navigation with Indian Constellation” (NavIC) . Consists of seven satellites providing Position, Navigation and Timing (PNT) services in Indian mainland and surrounding region up to 1500 Km.

Indian Global Positioning System
  • Provides two types of services- Standard Positioning Service (SPS) and Restricted Service (₹) .
  • Budget of ₹ 1420 Crore approved for the realization- including 7 in-orbit satellites, 2 satellites ground spares and associated ground segment.
  • ISRO established space segment of the NavIC system for providing signal in space enabling position, navigation and timing information, which can also support commercial civil applications.
  • Various user receivers are being developed indigenously.
  • Space and ground segment of the NavIC system established
  • Demonstrations of various applications and services already conducted
  • Operationalization depends on the service providers using the services in the market

Better Than GPs

  • System provides absolute position accuracy of better than 10 meters throughout Indian landmass and better than 20 meters in the Indian Ocean and region extending approximately 1,500 km around India.
  • NAVIC aims to provide standard positioning service to all users with accuracy up to 5 m.
  • GPS, for comparison, had a position accuracy of 20 - 30 m

Applications of NavIC

  • Will enable Indian entrepreneurs to provide services through NavIC receiver system with requisite information available in public domain.
  • Will be used for vessel tracking, vehicle tracking, messaging services for fishermen, timing applications
  • Will enable mobile-apps for navigational alerts across maritime jurisdictions- app already tested for the fishermen community using first generation NavIC receivers.

Details of Space Segment

  • Constellation consists of 7 satellites.
  • Three located in geostationary orbit (GEO) at 32.5° East, 83° East, and 131.5° East longitude, at approximately 36,000 km.
  • Four satellites in inclined geosynchronous orbit (GSO) - Two cross equator at 55° East and two at 111.75° East.

Details of Ground Segment

Responsible for the maintenance and operation of the IRNSS constellation ground segment comprises of

  • IRNSS Spacecraft Control Facility (IRSCF)
  • ISRO Navigation Centre (INC)
  • IRNSS Range and Integrity Monitoring Stations (IRIMS)
  • IRNSS Network Timing Centre (IRNWT)
  • IRNSS CDMA Ranging Stations (IRCDR)
  • Laser Ranging Stations
  • IRNSS Data Communication Network (IRDCN)
  • INC at Byalalu performs remote operations and data collection with all the ground stations

- Published/Last Modified on: September 1, 2017

Science/Technology

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