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Consider the following statements about Low Earth Orbit (LEO) 1. It is an Earth-centered orbit with an altitude of 2,000 km or less 2. The International Space Station conducts operations in LEO 3. Major disadvantage of Low Earth orbit is that it requires a high amount of energy for satellite placement 4. Spy satellites cannot use LEO Which of the above statements is/are not correct?

Consider the following statements about Low Earth Orbit (LEO) 1. It is an Earth-centered orbit with an altitude of 2,000 km or less 2. The International Space Station conducts operations in LEO 3. Major disadvantage of Low Earth orbit is that it requires a high amount of energy for satellite placement 4. Spy satellites cannot use LEO Which of the above statements is/are not correct? Correct Answer 3 and 4 only

Option 3 is NOT correct.

  • Low earth orbit refers to an altitude up to 2,000 km or less. Hence, statement 1 is correct.
  • A satellite in the LEO can monitor activities on the ground and water surfaces.
  • A Low Earth orbit requires the lowest amount of energy for satellite placement. Hence, statement 3 is not correct.
  • It provides high bandwidth and low communication latency. Satellites and space stations in LEO are more accessible for crew and servicing.
  • Earth observation satellites and spy satellites use LEO as they are able to see the surface of the Earth clearly by being close to it. Hence, statement 4 is NOT correct.
  • The International Space Station is in an LEO about 330 km to 420 km above Earth's surface.

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The Proper sequence should be:
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