SarkariPYQ

SSC CGL 2025 PYQ — Question 27

SSC CGL - 13 Sep 2025 - Shift 2 • General Awareness • Q27

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What type of orbit does NISAR follow?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. Sun-synchronous orbit

 

ISAR (NASA-ISRO Synthetic Aperture Radar) is an Earth observation satellite designed to monitor changes in land, ice, and vegetation. It follows a sun-synchronous orbit, which is a near-polar orbit allowing the satellite to pass over the same part of the Earth at roughly the same local solar time. This ensures consistent lighting conditions for imaging and precise monitoring over time.

Why others are incorrect:

  • A. Geostationary orbit: Remains fixed over one point on the equator; unsuitable for global mapping.

  • C. Polar orbit: General term; NISAR’s sun-synchronous orbit is a specific type of near-polar orbit.

  • D. Low Earth equatorial orbit: Confined to equatorial regions, limiting global coverage.