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Aditya-L1 will be put in a halo orbit around the Sun-Earth system’s Lagrange point 1 (L1), which is about 1.5 million km from Earth.
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ISRO posted on X, which used to be called Twitter, that Aditya-L1, the first Indian telescope in space that will study the Sun, is getting ready to launch. The satellite built at Bengaluru’s U R Rao Satellite Centre (URSC) has now arrived in Sriharikota’s Space and Defence Applications Research Centre (SDSC-SHAR).
ISRO said that as the spaceship moves towards L1, it will leave the Earth’s gravitational sphere of influence (SOI). After that, the cruise phase will begin. The spaceship will then be put into a big orbit around L1 called a “halo orbit.”
It would take Aditya-L1 about four months to get from the launch point to the L1 point.
ISRO says that a satellite that will be placed around L1 will have a big edge because it will always be able to see the Sun without being blocked by an eclipse or occultation.
The project will also give us a chance to watch the sun’s activity and see how it affects space weather in real time.
The spacecraft is equipped with seven payloads that will facilitate the observation of the photosphere, chromosphere, and corona of the Sun,the topmost layer. These observations will be conducted through the utilisation of electromagnetic and particle, and magnetic field detectors.
According to the information provided on ISRO’s website, the mission will utilise the L1 special vantage point to observe the sun using a total of four payloads. Out of these, three payloads will be dedicated to studying the particles and fields present at the L1 point. This research aims to offer significant scientific insights into the propagatory impact of solar dynamics within the interplanetary medium.
The Aditya L1 payloads are anticipated to provide significant data pertaining to the issues of coronal heating, coronal mass ejection, pre-flare and flare activity, as well as their characteristics. Additionally, they will contribute to the understanding of space weather dynamics, particle propagation, and field behaviour, among various other aspects.
What are the major objectives of the mission?
The primary objective of the mission will be to investigate the dynamics of the upper atmosphere of the Sun, specifically the chromosphere and corona. Additionally, the research will investigate the mechanisms behind chromospheric and coronal heating, the physics governing partially ionised plasma, the triggers for coronal mass ejections, and the occurrence of solar flares.
The mission is to observe and analyse the particle and plasma environment, with the aim of gathering valuable data for the comprehensive research of particle dynamics originating from the Sun. The primary objective of the mission will also involve the investigation and comprehension of the physical properties of the solar corona, as well as the mechanisms responsible for its heating.
The study aims to investigate the temperature, velocity, and density characteristics of plasma in coronal and coronal loops at a more profound level. Additionally, this study aims to investigate the development, dynamics, and origins of coronal mass ejections (CMEs).
The objective of this mission is to ascertain the sequence of events occurring in the various layers of the Sun, namely the chromosphere, base, and extended corona. These processes frequently culminate in solar eruptive events.
The primary objective of the mission is to investigate the magnetic field topology and measurements within the solar corona.
Additionally, it will ascertain the causative factors behind space weather phenomena and investigate the solar wind’s source, constitution, and behaviour.
ISRO says that Aditya-L1’s instruments are set up to look at the sun’s atmosphere, especially the chromosphere and corona. At L1, instruments that are already there will look at the surrounding environment. There are a total of seven payloads on board. Four of them do remote sensing of the Sun, and the other three do in-situ imaging.
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