NavIC

What is NavIC?

• NavIC (Navigation with Indian Constellation) is the operational name for the Indian Regional Navigation Satellite System (IRNSS).
• Also known as 'nāvik' in Indian languages, meaning 'sailor' or 'navigator'.
• NavIC is a regional satellite navigation system covering all of India and the surrounding area within 1500km of the border.

NavIC Operation

• NavIC consists of seven satellites and a network of ground stations.
  • Satellite constellation:
    • Four satellites are in inclined geosynchronous oribts (IGSO).
    • Three satellites are in geostationary orbit (GEO).
    • Provides positioning signals across two frequency bands (L5, S):
      • L5 Signal: 1176.450 MHz
      • S Signal: 2498.028 MHz
  • Ground stations include:
    • 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).

NavIC Services

• NavIC currently offers the following services:
• Standard Position Service (SPS) - Intended for civillian use.
• Restricted Service (RS) - Intended for strategic users (military).
• SPS and RS services are provided in the L5 and S bands.
• Positional accuracy < 20m and timing accuracy < 50ns.
• Fully interoperable with GPS, GLONASS, Galileo and BeiDou.

 

NavIC Coverage

• NavIC employs a combination of satellites in GEO and IGSO orbits to provide regional coverage in and around India.
  
  

  IGSO + GEO oblique view	IGSO + GEO polar view	IGSO + GEO equatorial front view	IGSO + GEO equatorial side view

  
  

NavIC Availability

• As of 12 April 2018, the NavIC constellation consisted of 7 operational satellites:
• GEO (GEostationary Orbit): I03, I06, I07
• IGSO (Inclined GeoSynchronous Orbit) 55°E, 29° inclined: I01, I02
• IGSO (Inclined GeoSynchronous Orbit) 111.75°E, 31° inclined: I04, I05
• View a list of available NavIC satellites.
• Choose desired NavIC Satellite (NMEA ID) below to view current location:

Do I Need NavIC?

• More modern GPS receivers (GPSr) are becoming capable of receiving NavIC satellite signals.
• NavIC-based vehicle tracking systems were made compulsory for all commercial vehicles in India as of April 1, 2019.