- Communication:
- Relays television signals, radio broadcasts, internet data, and telephone conversations globally.
- Connects remote regions, enhancing worldwide connectivity.
- Earth Observation:
- Equipped with sensors and cameras for weather forecasting, climate monitoring, and environmental research.
- Provides real-time information on natural disasters for disaster management.
- Navigation:
- Supports Global Navigation Satellite Systems (GNSS) like GPS for accurate positioning worldwide.
- Crucial for aviation, maritime navigation, emergency services, and everyday navigation.
- Scientific Research:
- Studies space, celestial bodies, and cosmic phenomena.
- Instruments like the Hubble Space Telescope capture images, expanding our understanding of the universe.
- National Security:
- Provides surveillance, reconnaissance, and intelligence gathering capabilities.
- Monitors threats, tracks movements, and supports defense and military operations.
- Remote Sensing:
- Uses remote sensing instruments for data in agriculture, forestry, urban planning, and resource management.
Working of Artificial Satellites
Artificial satellites are launched into space atop rockets, overcoming Earth's gravity to reach their designated orbits. Equipped with stabilization systems and solar panels for power, they serve various functions such as communication, Earth observation, and navigation.
Satellites transmit collected data back to Earth, contributing to weather forecasting, research, and global connectivity.
Stationkeeping systems maintain their stability, and upon mission completion, satellites are either moved to a "graveyard orbit" or deorbited in a controlled manner to minimize space debris.