ISRO Confirms Aditya-L1's Journey Beyond Sphere Of Earth's Influence| Details

The Aditya-L1 spacecraft has achieved a remarkable milestone, venturing beyond a distance of 9.2 lakh kilometers from Earth, effectively breaking free from Earth's 'sphere of influence'.

According to the Indian Space Research Organisation (ISRO), it is currently on its trajectory toward the Sun-Earth Lagrange Point 1 (L1). ISRO on social media site X said, "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)"

ISRO proudly continued to say, "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."

WHAT NEXT FOR ADITYA-L1: Aditya-L1 will be positioned in a 'Halo orbit' around the Sun-Earth L1 point, located approximately 1.5 million kilometers from Earth, constituting just about 1% of the Earth-Sun distance.

Lagrange points, also referred to as libration points, are extraordinary positions in space where the gravitational forces of two massive celestial bodies, such as the Sun and Earth, precisely balance the centripetal force required for a smaller object, like a spacecraft, to maintain its position. This unique characteristic of Lagrange points makes them ideal locations for spacecraft, as they minimize the need for orbit corrections and, consequently, reduce fuel requirements.

WHY ISRO WANTS TO STUDY THE SUN: The Aditya-L1 mission is driven by four primary scientific objectives:

-Gaining insights into coronal heating and solar wind acceleration.

-Understanding the initiation of Coronal Mass Ejection, flares, and near-Earth space weather.

-Investigating the coupling and dynamics of the solar atmosphere.

-Examining solar wind distribution and temperature anisotropy.

WHAT IS ADITYA-L-1: Launched on 2nd September, ISRO's Aditya-L1 mission holds the distinction of being India's maiden venture dedicated to studying the Sun, with a specific focus on the photosphere, chromosphere, and corona of the Sun. The mission boasts a total of seven distinct payloads, with five developed by ISRO and two in collaboration with academic institutes.