Aditya-L1
Indian solar probe
Aditya-L1 (Sanskrit: Āditya IPA: [aːd̪it̪jɐ] 'Sun', L1 'Lagrange Point 1') is a coronagraphy spacecraft for studying the solar atmosphere, designed and developed by ISRO and various other Indian Space Research Institutes. It is orbiting at about 1.5 million km from Earth in a halo orbit around the Lagrange point 1 (L1) between the Earth and the Sun, where it will study the solar atmosphere, solar magnetic storms, and their impact on the environment around the Earth.
It is the first Indian mission dedicated to observing the Sun. Nigar Shaji is the project's director. Aditya-L1 was launched aboard the PSLV-C57 at 11:50 IST on 2 September 2023. It successfully achieved its intended orbit nearly an hour later, and separated from its fourth stage at 12:57 IST. It was inserted at the L1 point on 6 January 2024, at 4:17 pm IST.
Mission objectives
The main objectives of Aditya-L1 are:
To observe the dynamics of the solar chromosphere and corona:
To study chromospheric and coronal heating, the physics of partially ionised plasma, of coronal mass ejections (CMEs) and their origins, of the coronal magnetic field and heat transfer mechanisms, and of flare exchanges.
To observe the physical particle environment around its position.
To determine the sequence of processes in multiple layers below the corona that lead to solar eruptions.
To study space weather, and the origin, composition and dynamics of solar wind.
To observe the in-situ particle and plasma environment providing data for the study of particle dynamics from the Sun.
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