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Introduction

Satellites, whether natural like the moon orbiting the Earth or artificial like the International Space Station orbiting the Earth, are intentionally placed in orbit around celestial bodies. These human-made objects have diverse applications, such as communication relay, weather forecasting, navigation, broadcasting, scientific research, and Earth observation. By facilitating data collection and enhancing our comprehension of the world, satellites play a crucial role in various domains.

Since 1975, India has achieved consistent success in launching a wide array of satellites. The responsibility for designing, constructing, launching, and operating these satellites lies with the Indian Space Research Organization (ISRO), a State-run space agency of India.

Types of Satellites and Their Applications

  • Communication Satellites: These satellites support various applications such as telecommunication, television broadcasting, satellite news gathering, societal services, weather forecasting, disaster warning, and Search and Rescue operations.
  • Earth Observation Satellites: These satellites provide remote sensing data used for tasks such as land and water resources management, cartography, oceanography, atmospheric monitoring, and other Earth observation applications.
  • Scientific Spacecraft: These spacecraft conduct research in diverse fields such as astronomy, astrophysics, planetary and Earth sciences, atmospheric sciences, and theoretical physics.
  • Navigation Satellites: Navigation satellites offer essential navigation services for civil aviation requirements and cater to user demands for positioning, navigation, and timing based on independent satellite navigation systems.
  • Experimental Satellites: Primarily used for experimental purposes, these satellites are employed in remote sensing, atmospheric studies, payload development, orbit controls, and recovery technology testing.
  • Small Satellites: Falling under the sub 500 kg class, these satellites serve as platforms for stand-alone payloads, enabling Earth imaging and science missions with a quick turnaround time.
  • Student Satellites: As part of ISRO's Student Satellite program, these satellites encourage universities and institutions to develop Nano/Pico Satellites for educational and research purposes.

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Indian Satellites | Famous Books for UPSC Exam (Summary & Tests)Indian Satellites | Famous Books for UPSC Exam (Summary & Tests)

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