SATELLITE - SS2 Commerce Lesson Note

A satellite refers to an object that orbits around a planet or a celestial body. Satellites are commonly used to describe man-made objects launched into space for various purposes. Satellites play important roles in communication, navigation, weather forecasting, scientific research, and more.

The primary function of communication satellites is to facilitate long-distance communication. These satellites are equipped with transmitters and receivers that allow them to send and receive signals, enabling communication between different locations on Earth. They act as relay stations, receiving signals from one location and transmitting them to another, thereby facilitating television broadcasts, phone calls, internet connectivity, and other forms of communication across vast distances.

Satellites also have a crucial role in navigation systems, such as the Global Positioning System (GPS). GPS satellites provide accurate positioning and timing information, enabling navigation devices on Earth to determine their precise location. This technology has revolutionized navigation for various applications, including transportation, mapping, and outdoor activities.

Weather satellites are specifically designed to observe and monitor the Earth's atmosphere. They capture images and collect data about weather patterns, cloud formations, temperature, and other atmospheric parameters. This information helps meteorologists and weather forecasters track and predict weather conditions, leading to improved forecasting accuracy and early warning systems for severe weather events.

Scientific research is another important function of satellites. Specialized satellites are deployed to study various aspects of our planet, including its climate, land cover, oceans, and ecosystems. They collect data that contribute to a better understanding of Earth's systems and processes, which can aid in environmental monitoring, resource management, and scientific discoveries.