Question 1

What is the primary function of a Geostationary satellite?

Accepted Answer

Providing telecommunication services. Geostationary satellites remain fixed above a specific point on Earth to provide continuous coverage. This position is ideal for transmitting television signals and long-distance communication. They orbit at an altitude of approximately 35,786 kilometers.

Question 2

Which country launched the world's first artificial satellite, Sputnik 1?

Accepted Answer

Soviet Union. The Soviet Union launched Sputnik 1 into orbit on October 4, 1957. This event marked the beginning of the Space Age and triggered the space race. It was a small metal sphere with four external radio antennas.

Question 3

What is the orbital period of a Geostationary satellite?

Accepted Answer

24 hours. A geostationary satellite completes one orbit in approximately 24 hours, matching Earth's rotation. Because the speeds are synchronized, the satellite appears stationary from the ground. This allows ground antennas to stay pointed at the satellite without tracking systems.

Question 4

Which type of orbit is commonly used by remote sensing satellites for consistent lighting conditions?

Accepted Answer

Sun-Synchronous Orbit. Sun-synchronous orbits allow satellites to pass over a location at the same local solar time. This ensures consistent illumination for capturing high-quality Earth imagery. Most environmental and mapping satellites use this near-polar orbit.

Question 5

What is the approximate altitude of satellites in the Low Earth Orbit (LEO)?

Accepted Answer

160 to 2,000 km. Low Earth Orbit is the region relatively close to the Earth's surface. Most scientific satellites and the International Space Station reside in this zone. Satellites in LEO travel at high speeds to avoid falling into the atmosphere.

Satellites — Set 1