Science
ISRO Launches Aditya-L1, India's First Space Mission To Study The Sun, From Sriharikota
Pic Via YouTube screengrab
The Indian Space Research Organisation (ISRO) on Saturday (2 September) launched the Aditya-L1, India's first space mission to study the Sun, onboard PSLV-C57.
The Indian space agency launched the satellite at around 11.50 am today (2 September) from its rocket launchpad at Sriharikota in Andhra Pradesh.
The PSLV rocket will put Aditya-L1 spacecraft in a highly eccentric Earth bound orbit.
The spacecraft will then perform orbital maneuvers by using its Liquid Apogee Motor (LAM) to reach Sun-Earth Lagrange point L1 (1.5 million kilometers from Earth, in a halo orbit).
The placement of Aditya-L1 at the L1 Lagrange point ensures a constant and uninterrupted view of the Sun. This strategic location allows the satellite to observe solar radiation and magnetic storms before they are influenced by Earth's magnetic field and atmosphere.
Furthermore, the gravitational stability of the L1 point minimizes the need for frequent orbital maintenance, optimizing the operational efficiency of the satellite.
The scientific objectives of Aditya-L1 mission includes, study of coronal heating, solar wind acceleration, Coronal Mass Ejections (CME),dynamics of solar atmosphere and temperature anisotropy.
The spacecraft carries seven scientific payloads for systematic study of the Sun. All payloads are indigenously developed in collaboration with various ISRO Centres and Scientific Institutes, the ISRO said.
The main science payloads of the spacecraft include the Visible Emission Line Coronagraph (VELC), which is used for corona imaging and spectroscopy studies, and the Solar Ultraviolet Imaging Telescope (SUIT), which is used for narrow and broadband imaging of the photosphere and chromosphere.
The other instruments on board are the Solar Low Energy X-ray Spectrometer (SoLEXS), which is used for soft X-ray spectrometry and observing the Sun as a star; the High Energy L1 Orbiting X-ray Spectrometer (HEL1OS), which is used for hard X-ray spectrometry and observing the Sun as a star; the Aditya Solar wind Particle Experiment (ASPEX), which studies the solar wind; the Plasma Analyser Package for Aditya (PAPA), which analyzes particles in the solar wind; and the Advanced Tri-axial High Resolution Digital Magnetometers, which are used for in-situ magnetic field studies.
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