After bidding adieu to Earth’s orbit 11 days ago, India’s solar mission Aditya L1 has now left the Earth’s sphere of influence — the region up to which our planet’s gravitational pull can impact a satellite, the Indian Space Research Organisation said on Saturday.
The satellite left the Earth’s orbit on September 19. The spacecraft has travelled 0.92 million kilometres with a nearly 100-day journey ahead to reach the Lagrangian (L1) point 1 between the Sun and the Earth. “This is the second time in succession that ISRO could send a spacecraft outside the sphere of influence of the Earth, the first time being the Mars Orbiter Mission,” it said on X.
Aditya-L1 Mission:
🔸The spacecraft has travelled beyond a distance of 9.2 lakh kilometres from Earth, successfully escaping the sphere of Earth's influence. It is now navigating its path towards the Sun-Earth Lagrange Point 1 (L1).
🔸This is the second time in succession that…
— ISRO (@isro) September 30, 2023
The L1 point lies at only 1 per cent of the distance between the Earth and the Sun. This specific point has been selected as it allows an unobstructed view of the Sun with no celestial body or atmospheric dust and magnetic fields causing any hindrances.
Dr Sanaka Subramanian, the scientist leading the Aditya L1 mission, said that at the time when the mission was conceived it was ensured that it would provide a unique set of data that has not been provided by any other mission so far.