What is one of the main purposes of satellites in a Geostationary Orbit (GEO)?

• A. Low latency communication with ground stations
• B. Constant viewing and broad coverage of the Earth
• C. High-resolution imaging for scientific research
• D. Manned missions to low Earth orbit

Answer: (B)

Satellites in a Geostationary Orbit (GEO) play a crucial role in providing constant viewing and broad coverage of the Earth. This is because GEO satellites are positioned approximately 35,786 kilometers (22,236 miles) above the equator and move in sync with the Earth's rotation. As a result, they remain fixed over a specific point on the Earth's surface. This unique positioning allows them to continuously monitor and communicate with the same area, making them ideal for applications such as weather monitoring, telecommunications, and broadcasting.

The constant viewing capability ensures that these satellites can provide uninterrupted service and data collection for their designated regions, which is essential for various industries, including meteorology and communications. Their wide coverage area allows them to serve large populations and vast geographical regions effectively.

In contrast, while low latency communication is indeed a feature of GEO satellites due to their high orbit, the defining characteristic of their purpose is the ability to continuously cover the same area on Earth. High-resolution imaging for scientific research and manned missions to low Earth orbit are functions associated with different types of satellites and orbits that are not compatible with the specific capabilities of GEO satellites.