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Aditya-L1’s 1st Earth-Bound Orbit-Raising Manoeuvre Performed Successfully: ISRO

Mumbai: The Indian Space Research Organisation (ISRO) on Sunday said Aditya-L1, the country’s first solar mission, is healthy and operating nominally.

“The satellite is healthy and operating nominally,” the space agency said. “The next manoeuvre is scheduled for September 5, 2023, around 03:00 Hrs.”

From the Satish Dhawan Space Centre in Sriharikota, the ISRO launched its maiden mission to study the Sun on Saturday.

“The satellite was accurately positioned by the vehicle into the desired orbit. The first solar observatory in India has started its trip towards the Sun-Earth L1 point, according to the space agency.

This occurred only a few weeks after the ISRO successfully landed Chandryaan-3, its third lunar mission, on the Moon’s south pole. 

Aditya L-1 will be launched into a halo orbit 1.5 million kilometers from Earth’s surface, near the Lagrange point 1 (L1) of the Sun-Earth system. The main benefit of having a satellite in the halo orbit around the L1 point is being able to continually see the Sun without any occultation or eclipses.

The ability to observe solar activity and how it affects space weather in real time will be improved, according to the space agency. The spacecraft is equipped with seven payloads that use magnetic field and electromagnetic particle detectors to study the photosphere, chromosphere, and outermost layers of the Sun (the corona).

Four payloads use the unique vantage point L1 to observe the Sun directly, while the remaining three payloads conduct in-situ particle and field investigations at the Lagrange point L1. This allows for significant scientific research on the propagation of solar dynamics in the interplanetary medium.

The suits of Aditya L1 payloads are expected to provide crucial information to understand the problem of coronal heating, coronal mass ejection, pre-flare and flare activities and their characteristics, dynamics of space weather, propagation of particles and fields, etc.

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