"Dream, Dream, Dream! Conduct these dreams into thoughts, and then transform them into action."
- Dr. A. P. J. Abdul Kalam
3 Sep 2023
The Indian Space Research Organisation (ISRO) has embarked on an extraordinary mission to unravel the mysteries of our nearest star, the Sun. The Aditya-L1, a satellite developed for solar scrutiny, has taken its first step towards the heavens, marking a remarkable feat in India's space endeavors.
The Aditya-L1 mission's journey began with the successful launch of the Polar Satellite Launch Vehicle, PSLV-C57.1, from the Satish Dhawan Space Centre in Andhra Pradesh's Sriharikota. Now, the mission is poised to take its first Earth-bound firing step, scheduled for 11:45 am on Sunday.
But what exactly does this firing entail? Imagine a swing in a playground - to make it soar higher, you apply pressure as it swings down. Similarly, Aditya-L1 will use carefully calculated rocket firings and adjustments to increase its velocity, propelling it toward its intended path around the Sun-Earth L1 Lagrange Point.
Aditya-L1 will stay in Earth-bound orbits for 16 days, undergoing five maneuvers to acquire the necessary velocity for its 110-day journey to the L1 point. Once it arrives, the spacecraft will be strategically positioned 1.5 million kilometers away from Earth, in the Sun's direction.
Aditya-L1 carries seven payloads designed to scrutinize the Sun's activities. Four instruments will study solar light, while three will measure plasma and magnetic fields. It’s unique vantage point allows Aditya-L1 to continuously observe the Sun, providing uninterrupted data to analyze solar activities and their influence on space weather in real-time.
The mission aims to unravel the intricate processes behind solar eruptions, enhancing our understanding of space weather dynamics. As Aditya-L1 embarks on this celestial swing, it holds the promise of expanding our understanding of the cosmic forces that shape our solar system.