Solar Mission: ISRO’s Aditya L1 successfully performed 3rd Earthbound Maneuver

BENGALURU (Karnataka): India’s first solar-powered spacecraft Aditya L1 has successfully completed its third Earth-bound maneuver, the Indian Space Research Organization (ISRO) said on Sunday.

“Third Earthbound Maneuver (EBN#3) successfully conducted from Bangalore ISTRAC. ISRO’s ground stations at Mauritius, Bengaluru, SDSC-SHAR and Port Blair monitored the satellite during the operation. The new orbit achieved is 296 km x 71767 km,” ISRO said in a post on 'X’.

“The next maneuver (EBN#4) is scheduled for September 15, 2023 at 02:00 PM. IST,” it added.

Earlier on September 5, Aditya L1 successfully completed its second Earthbound maneuver and achieved an orbit of 282 km x 40225 km.

After the successful landing of Chandrayaan-3 near the Moon’s South Pole, ISRO launched the country’s first solar probe, Aditya-L1, from the Satish Dhawan Space Center in Sriharikota on September 2.

It carried seven different payloads for a detailed study of the Sun, four of which will observe the light from the Sun, and the other three will measure the location parameters of the plasma and magnetic fields.

Aditya-L1 will be placed in a halo orbit around Lagrangian Point 1 (or L1), 1.5 million km from Earth in the direction of the Sun. The distance is expected to be covered in four months.

Aditya-L1 will be about 1.5 million km from Earth and will be pointed towards the Sun, which is about 1 percent of the Earth-Sun distance. The Sun is a giant gas sphere and Aditya-L1 will study the Sun’s outer atmosphere.

Aditya-L1 will not land on or approach the Sun, ISRO said.

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This strategic location will enable Aditya-L1 to continue observing the Sun uninterrupted by eclipses or eclipses, allowing scientists to study solar activity and their impact on space weather in real time. Furthermore, data from the spacecraft will help identify the sequence of processes that lead to solar flare events and contribute to a deeper understanding of space weather drivers.

Major objectives of India’s solar mission include the physics of the solar corona and its heating mechanism, acceleration of the solar wind, coupling and dynamics of the solar atmosphere, diffusion and temperature anisotropy of the solar wind, and the origin of coronal mass ejections (CME). Combustion and Near-Earth Space Weather.

Aditya-L1 is a satellite dedicated to the detailed study of the Sun, which will uncover unknown facts about the Sun. The satellite will orbit the Earth for 16 days, during which it will make five maneuvers to gain the necessary speed to reach its destination.

Subsequently, Adia-L1 undergoes a trans-Lagrangian insertion maneuver that takes 110 days. The satellite will travel approximately 15 million kilometers to reach the L1 point. According to information shared on ISRO’s official website, once it arrives at the L1 point, another maneuver binds Aditya-L1 into an orbit around L1, the locus of gravitational equilibrium between the Earth and the Sun.

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