IRNSS as Indian Navigation Satellite System


IRNSS (Indian Regional Navigation Satellite System) is a Navigation Satellite System purely developed by India for the purpose of timing services across India and actual real-time positioning and which is one of the Latest Technology Trends.

There are other developed countries having this Satellite System, namely  United States – GPS (Global GNSS), Russian – GLONASS (Global GNSS), China – BeiDou, European Union’s Galileo (Global GNSS), now Indian IRNSS. France and Japan are in the process of developing.

IRNSS extends to 1500 km around India alone.

IRNSS has been renamed NAVIC (Navigation with Indian Constellation) which stands for Navigation in Hindi.

Fully developed IRNSS or NAVIC has 3 satellites in GEO (Geostationary) orbit and 4 satellites in GSO (Geosynchronous) orbit, which is likely 36,000km above earth surface.

There are 2 other satellites stand-by in ground, comprising 9 satellites totally in the System.

The ultimate reason for developing such Navigation system is because of non-guaranteed foreign GPS in hostile situations, which happened previously during Kargil war, where Indian Military was depending American GPS.

This NAVIC provides two services,

  • Standard Positioning Service for Civilian use
  • Restricted Service for Military

Once NAVIC is fully operational, it is expected to join a selective group of nations and their Navigational Satellite system.

IRNSS/NAVIC comprising 7 satellites are in orbit and expected to operate from June 2016 effectively.

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