Civil Services Prep

Prelims 2018 · Science and Technology · Question 61

With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements:

  1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits.
  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?

  1. 1 only
  2. 1 and 2 only
  3. 2 and 3 only
  4. None

Answer

1 only

1. Correct. IRNSS/NavIC constellation was designed with 7 satellites: 3 in geostationary orbit (GEO) and 4 in geosynchronous orbit (GSO).

2. Incorrect. IRNSS covers India and about 1500 km beyond its borders, not 5500 sq. km beyond them.

3. Incorrect. IRNSS/NavIC is a regional navigation system, not one with full global coverage by mid-2019.

Hence, only statement 1 is correct.

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