🚀 INDIA IN SPACE
Indian Satellites & Space Technology
A journey from Aryabhata (1975) to the latest ISRO missions
Explore • Discover • Listen • Learn
🌍 Discover India's Space Journey
India has developed satellites for communication, agriculture, weather forecasting, navigation, scientific research and national development.
Click any colourful index card to explore its topic and listen to the audio narration.📚 Main Learning Index
Select any topic. Each section includes explanatory text and audio narration.
🛰️ 1. Chronological History of Indian Satellites
Explore important Indian satellites and spacecraft in chronological order. The list highlights major milestones, not every satellite ever launched.
🌏 2. Types of Indian Satellites
Satellites are classified according to their purpose and the work they perform.
🚀 3. Indian Satellite Launch Vehicles
🌙 4. Important Indian Space Missions
⚙️ 5. Important Satellite Technology Terms
Learn the important technical words used in satellite science and space research.
🌌 6. Types of Satellite Orbits
| Orbit | Meaning | Applications |
|---|---|---|
| LEO | Low Earth Orbit | Earth imaging, research, observation |
| MEO | Medium Earth Orbit | Navigation satellites |
| GEO | Geostationary Earth Orbit | Communication and weather monitoring |
| GSO | Geosynchronous Orbit | Communication and other services |
| SSO | Sun-Synchronous Orbit | Remote sensing and mapping |
| GTO | Geosynchronous Transfer Orbit | Transfer path to geostationary orbit |
| Polar Orbit | Orbit passing near both poles | Global Earth observation |
| Elliptical Orbit | Oval-shaped orbit | Special scientific missions |
📡 7. How Does a Satellite Work?
| Component | Function |
|---|---|
| Solar Panels | Convert sunlight into electrical energy. |
| Battery | Stores electrical energy for use during eclipse periods. |
| Antenna | Transmits and receives radio signals. |
| Transponder | Receives, processes and retransmits communication signals. |
| Payload | Scientific instrument or equipment performing the mission. |
| Bus | Main satellite platform supporting its subsystems. |
| Attitude Control | Maintains the required orientation of the satellite. |
| Propulsion System | Provides thrust for orbit changes and manoeuvres. |
| On-board Computer | Controls and manages satellite operations. |
| Ground Station | Communicates with and monitors the satellite. |
📝 8. Knowledge Assessment
Choose the correct answer for each question.
📖 9. Reference and Further Reading
For authentic mission details, photographs, launch dates and technical specifications, visit the official sources.
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