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- ISRO to build Twin Satellites ‘DISHA’
ISRO to build Twin Satellites ‘DISHA’
- 11 May 2022
Indian Space Research Organisation (ISRO) will build an identical pair of satellites for studying the earth’s upper atmosphere.
- The twin satellites named DISHA (Disturbed and quiet time Ionosphere-thermosphere System at High Altitudes) will be launched in the low earth orbit – about 500 km above earth – to study the physics and chemistry of the upper atmosphere.
Payload & Placement
- The two satellites will carry identical payloads while one will be placed at higher inclination DISHA – H and the other DISHA – L at a lower inclination to the equator.
Why studying upper atmosphere is important?
- The upper atmosphere is the first region to experience the wrath of the Sun before it percolates further down.
- The DISHA satellites will study space weather, solar-terrestrial interactions and provide an advance warning on space based weather happenings and preventive actions can be taken.
Other Advantages
- The data generated by the proposed ISRO’s solar mission Aditya 1 and by DISHA satellites would help to understand the Sun-Earth linkages.
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