Initially Aditya-L1 will be placed in low earth orbit. Gradually its orbit will be upgraded and eventually it will start traveling towards the L-1 point close to the Sun after coming out of the Earth’s gravitational field. The journey will be of about four months.
चांद के बाद अब सूरज! 2 सितंबर को लाॅन्च होगा India का सौर मिशन आदित्य-L
Initially Aditya-L1 will be placed in low earth orbit. Gradually its orbit will be upgraded and eventually it will start traveling towards the L-1 point close to the Sun after coming out of the Earth’s gravitational field. The journey will be of about four months.
After successfully carrying out the Chandrayaan-3 moon landing mission, the Indian Space Research Organization (ISRO) will now launch the country’s first space-based observatory ‘Aditya-L1’ at Andhra Pradesh at 11.50 am on September 2 to get a closer look at the Sun. Will launch from the Space Launch Center at Sriharikota. The space agency has invited members of the public to register to watch the launch from the gallery of the Space Launch Center at Sriharikota in Andhra Pradesh.
ISRO said that Aditya-L1 will be carried by the Indian rocket PSLV-XL. Initially, Aditya-L1 will be placed in low Earth orbit. Later, its orbit will be gradually upgraded and eventually it will start traveling towards the L-1 point near the Sun after coming out of the Earth’s gravitational field. The journey from launch to L1 will take Aditya-L1 about four months and the distance from Earth will be about 1.5 million km. The distance between Earth and Moon is about 3.84 lakh km.
ISRO said, “The satellite placed in coronal orbit around the L1 point has the major advantage of observing the Sun continuously without any eclipse. This will make it possible to study solar activities and its effect on space weather in near real time.”
According to ISRO, the spacecraft will carry seven payloads to observe the photosphere, chromosphere and the outermost layers (corona) of the Sun using electromagnetic and particle and magnetic field detectors. The agency explained that four payloads will be directly sunlit using the special vantage point L1 and the remaining three payloads will study the particles and fields at the Lagrange point L1.
The mission is expected to provide the most important information for understanding coronal heating, coronal mass ejection, pre-flare and flare activities and their characteristics, space weather dynamics, diffusion of particles and spheres and other, Indian space problems.
The Indian space agency said that the Sun is estimated to be 4.5 billion years old and is a hot glowing ball of hydrogen and helium gases which is the source of energy for the solar system. The Sun’s gravity holds all the objects in the Solar System together. In the central region of the Sun, known as the ‘core’, the temperature can reach up to 150 million degrees Celsius.
At this temperature, a process called nuclear fusion takes place in the core which provides energy to the Sun. ISRO said that the visible surface of the Sun, known as the photosphere, is relatively cold and has a temperature of about 5,500 degrees Celsius. The Sun is the nearest star and therefore it can be studied in more detail than other stars. ISRO said, by studying the Sun, we can learn a lot about the stars of our own galaxy as well as the stars of various other galaxies.
The Indian space agency said that all the seven payloads to be carried by Aditya-L1 have been indigenously developed by various laboratories in the country in close coordination with it. The Visible Emission Line Coronagraph (VELC) instrument has been developed at the Indian Institute of Astrophysics, Bengaluru. The Solar Ultra-Violet Imaging Telescope (SUIT) instrument has been fabricated at the Inter University Center for Astronomy and Astrophysics, Pune.
Aditya Solar Wind Particle Experiment (ASPEX) at Physical Research Laboratory, Ahmedabad; Plasma Analyzer Package for Aditya (PAPA) at Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram; Solar Low Energy X-ray Spectrometer and High Energy L1 Orbiting X-ray Spectrometer payloads at UR Rao Satellite Centre, Bengaluru; And the magnetometer has been fabricated at the Laboratory of Electro Optics Systems, Bengaluru.
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