Which satellite orbit is noted for its slower speed compared to LEO?

• A. Geostationary Orbit
• B. Medium Earth Orbit (MEO)
• C. Low Earth Orbit (LEO)
• D. Molniya

Answer: (B)

The correct choice refers to Medium Earth Orbit (MEO) as the satellite orbit characterized by a slower speed compared to Low Earth Orbit (LEO). In understanding satellite orbits, it's important to note that each orbit is defined by its altitude and the gravitational pull experienced at that distance from the Earth.

MEO generally ranges from about 2,000 kilometers to 35,786 kilometers above Earth. Satellites in MEO move at lower speeds than those in LEO due to the greater distance from the Earth's surface. This distance results in a weaker gravitational pull, allowing MEO satellites to maintain a stable orbit at a slower speed.

For context, LEO satellites typically operate at altitudes ranging from about 160 kilometers to 2,000 kilometers. These lower altitudes result in faster orbital speeds, which enables a quicker completion of an orbit around the Earth.

Geostationary Orbit, placed at approximately 35,786 kilometers, is designed to rotate with the Earth's rotation, appearing stationary relative to the Earth's surface. Although geostationary satellites are high and have corresponding slower speeds due to their distance, this orbit is not part of MEO but rather a distinct category.

Molniya orbits also have unique characteristics and are designed