Question

Sun-synchronous satellites orbit at an altitude of \rule{1cm{0.15mm} km from the Earth.}

• A. 80
• B. 800
• C. 100
• D. 2000

Hint:

Remember: \[ \boxed{ \text{Sun-synchronous Orbit} \approx 600\text{--}900\ \text{km} } \] A commonly accepted value in competitive exams is \[ \boxed{800\ \text{km}.} \]

Answer 1

The Correct Option is B

Concept: Sun-synchronous satellites are near-polar satellites that cross the equator at nearly the same local solar time during each orbit. They generally operate at altitudes between \(600\) km and \(900\) km.

Step 1: Recall the typical altitude. Most Earth observation satellites in sun-synchronous orbit operate at approximately \[ \boxed{800\ \text{km}.} \]

Step 2: Choose the correct option. Hence, \[ \boxed{800\ \text{km}} \] is the correct answer. Therefore, the correct option is \[ \boxed{(B).} \]