September 22, 2023

Aditya L-1 : Aditya-L1 has started collecting scientific data. The STEPS instrument’s sensors have begun measuring super-thermal and energetic ions and electrons at distances more than 50,000 km from Earth. This data helps scientists analyze the behavior of particles around the Earth. This diagram shows the variation in the energetic particle environment collected by a single unit. ISRO gave all the information by sharing a photo on its official social media platform.

Aditya L1 successfully completes fourth milestone

Aditya L1, India’s first space-based mission to study the Sun, successfully entered Earth’s orbit for the fourth time early Friday. “Earth Orbit Change (EBN-4) was successfully executed for the fourth time,” the space agency said in a post on ‘X’ (formerly Twitter). ISRO’s ‘ground stations’ at Mauritius, Bengaluru, SDSC-SHAR and Port Blair monitored the satellite during the mission.

Aditya L1’s current orbit is 256 km x 121973 km.

The current orbit of Aditya L1 is 256 km x 121973 km. ISRO said: “The next orbit change procedure – ‘Trans-Lagrangian Point 1 Insertion’ (TL1I) – is scheduled for around 2 am on September 19.” Aditya-L1 is the first Indian space-based observatory to orbit around Earth. It is going to study the Sun from a halo orbit around the Sun-Earth’s first Lagrangian point (L1), 1.5 million kilometers away.

The goal of the mission is to go near the Lagrangian 1 point.

The first, second and third processes of Earth’s orbit change were successfully carried out on September 3, 5 and 10 respectively. This process is being carried out during Aditya-L1’s 16-day journey around the Earth, during which Aditya-L1 will gain the necessary speed for its onward journey. After undergoing four Earth-bound orbit transitions, Aditya-L1 will next undergo the trans-Lagrangian1 insertion orbit insertion process, beginning its approximately 110-day trajectory to destination around the L1 Lagrange point.

L1 A balanced gravitational space between the Earth and the Sun

L1 is a gravitationally balanced space between the Earth and the Sun. The satellite is scheduled to spend its entire mission life revolving around L1 in an irregularly shaped orbit in a plane nearly perpendicular to the line joining the Earth and the Sun. ISRO’s Polar Satellite Launch Vehicle (PSLV-C57) successfully launched Aditya-L1 from the second launch pad of Satish Dhawan Space Center (SDSC) in Sriharikota on September 2.