IRNSS 1C successfully launched

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India is just 4 satellites away from having its own GPS

The third in the series of seven navigational satellites, namely 'IRNSS 1C', has successfully been placed into the geosynchronous orbit.

Some Facts

  • PSLV-C26 (Polar Satellite Launch Vehicle) rocket carried it into the space from the launchpad at the Satish Dhawan Space Centre, Sriharikota (Andhra Pradesh).
  • The 1,425 kg satellite, originally scheduled for launch on October 10, was delayed due to some technical snag.
  • The first two in the series IRNSS 1A (July 2013) and IRNSS 1B (April 2014) has already been launched.

Indian Regional Navigation Satellite System (IRNSS) : Our GPS

  • Will have a total of 7 satellites in space expected by 2015 (3 in geostationary orbit and 4 in inclined geosynchronous orbit).
  • Will have a range of 1500km (thus neighbouring countries like Nepal, Srilanka would also be able to use)
  • Positional accuracy of better than 20 metres in the "primary service area" (i.e 1500km)

Services:

  • Standard Positioning Service : Available for all users
  • Restricted Service : encrypted service (only for authorised users like Military and other government agencies)

Some Applications (where it will be useful once all 7 satellites are in space):

  • To provide accurate position information service to users (precise timing), disaster management, Navigation : (marine, aerial, terrestrial), aid to hikers, mountaineers, trekkers and other travellers vehicle tracking ; visual-voice navigation in driving; fleet management, mapping and geodetic data capture.

Other Navigational Satellite Systems:

  • Global Orbiting Navigation Satellite System (GLONASS) : Russia,
  • Global Positioning System (GPS) : United States,
  • Galileo (GNSS) : European Union,
  • BeiDou satellite navigation system (COMPASS) : China
  • Quasi-Zenith Satellite System : Japan

ISRO Chairman :  K. Radhakrishnan

Practice Questions
Q1
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