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      Question

      With reference to the Indian Regional Navigation

      Satellite System (IRNSS), consider the following statements: 1. The system currently consists of a constellation of eight satellites, with two additional satellites on ground as stand-by. 2.  IRNSS covers entire India and about 5500 sq. km beyond its borders. 3.  India will have its own satellite navigation system with full global coverage by the middle of 2019. Which of the statements given above is/are correct?
      A 1 only Correct Answer Incorrect Answer
      B 1 and 2 only Correct Answer Incorrect Answer
      C 2 and 3 only Correct Answer Incorrect Answer
      D None of the above Correct Answer Incorrect Answer

      Solution

      Only Statement 1 is correct : Indian Regional Navigation Satellite System  ( IRNSS ), with an operational name of  NavIC  (acronym for  Navigation with Indian Constellation. The system currently consists of a constellation of eight satellites, with two additional satellites on ground as stand-by. IRNSS system is expected to provide position accuracy of better than 20 metre over Indian region and an area extending about 1500 sq km around India. NavIC-based trackers are compulsory on commercial vehicles in India and some consumer mobile phones with support for it have been available since the first half of 2020.

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