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ISRO will insert the Aditya L1 spacecraft into Trans-Lagrangian Point 1 at around 2 am today. For this, the thrusters of the vehicle will be fired for some time. Trans-Lagrangian point 1 insertion means sending the vehicle from Earth’s orbit towards Lagrangian point 1. From here the spacecraft will start its journey of 15 lakh kilometres. It will reach Lagrangian point 1 in January 2024.
Aditya L1 was launched on September 2 at 11.50 am from the Satish Dhawan Space Center in Sriharikota using the XL version rocket of PSLV-C57. 63 minutes and 19 seconds after launching, the spacecraft was placed in Earth’s 235 Km x 19500 Km orbit. After this, the spacecraft’s orbit was increased by firing its thrusters 4 times.
Aditya L1 was launched on September 2 from the Satish Dhawan Space Center in Sriharikota.
Aditya L1 started collecting scientific data
Earlier on Monday, ISRO had said that Aditya L1 has started collecting scientific data. The Supra Thermal and Energetic Particle Spectrometer or STEPS instrument installed on the spacecraft was activated on September 10, 50,000 kilometers away from Earth. With the help of data, information about storms arising on the Sun and space weather will be available.
The STEPS instrument is part of the Aditya Solar Wind Particle Experiment or ASPEX payload. STEPS has six sensors. Each sensor observes in different directions and measures supra-thermal and energetic ions ranging from 20 keV/nucleon to 5 MeV/nucleon, in addition to electrons greater than 1 MeV.
Orbit was increased on 3, 5, 10 and 15 September
Know the journey of Aditya L1 in 5 points
What is Lagrange Point-1 (L1)?
The Lagrange point is named after the Italian-French mathematician Joseph-Louis Lagrange. It is colloquially known as L1. There are five such points between the Earth and the Sun, where the gravitational force of the Sun and the Earth gets balanced and centrifugal force is created.
In such a situation, if any object is placed at this place, it easily starts revolving around that point. The first Lagrange point is at a distance of 1.5 million kilometers between the Earth and the Sun. There is no effect of eclipse on this point.
Aditya has 7 payloads:
Why is study of Sun important?
The Sun is the center of the solar system in which our Earth exists. All eight planets revolve around the Sun. There is life on Earth only because of the Sun. Energy flows continuously from the Sun. We call these charged particles. By studying the Sun, it can be understood how changes in the Sun can affect space and life on Earth.
The Sun releases energy in two ways:
This is called solar flare. When this flare reaches the Earth, the Earth’s magnetic field protects us from it. If it collides with the satellites in orbit, they will be damaged and communication systems on Earth and other things will come to a standstill.
The largest solar flare hit Earth in 1859. This is called the Carrington Event. Then telegraph communication was affected. That is why ISRO wants to understand the Sun. If there is more understanding of solar flare then steps can be taken to deal with it.