ISRO's Aditya-L1 spacecraft set to embark on historic solar journey

India's ISRO is gearing up for the launch of the Aditya-L1 solar mission, following its recent lunar success. This groundbreaking mission will explore the Sun in unprecedented detail.

| Updated on: Sep 02 2023, 10:15 IST
The pivotal role of the Indian Institute of Astrophysics in crafting Aditya-L1's solar corona study payload
1/6 The Indian Institute of Astrophysics (IIA) has announced its pivotal role in the Aditya-L1 mission. This landmark project, a collaborative effort with ISRO, aims to revolutionize our understanding of the Sun. (ISRO)
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2/6 IIA's team has built the Visible Emission Line Coronagraph (VELC), an important part of the seven payloads aboard Aditya-L1. VELC will uncover the mysteries of the solar corona, bringing us closer to comprehending our star. For the unaware, the solar corona is the outermost layer of the Sun. (ISRO)
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3/6 "In its quest to assemble the VELC payload, IIA established India's pioneering "Class to Clean Rooms" at its CREST campus in Hosakote. This effort underscores our commitment to technological excellence," said the institution. (ISRO)
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4/6 Embracing the Sun's Halo Orbit: Aditya-L1 is poised for liftoff from Sriharikota on September 2. As part of this extraordinary mission, the satellite will be positioned in a halo orbit around the first Lagrangian point (L1) of the Sun-Earth system, offering uninterrupted solar observations. (ISRO)
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5/6 Unveiling the Solar Secrets: VELC's revolutionary capabilities include simultaneous imaging, spectroscopy, and spectro-polarimetry channels. These features enable us to probe the solar corona's intricate dynamics, origin of coronal mass ejections, and magnetic field measurements, propelling solar science into a new era. (ISRO)
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6/6 The insights gleaned from Aditya-L1's scientific voyage will not only deepen our understanding of the solar corona but also furnish essential data for space weather studies. As India continues to make strides in space exploration, Aditya-L1's mission promises to enlighten us about both the moon and the sun. (ISRO)
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The Aditya-L1 mission is to be launched on September 2 at 11:50 a.m. from Sriharikota. (ISRO Twitter)

ISRO is preparing to launch the Aditya-L1 solar mission, which will embark on a 125-day voyage to the Sun. This mission, featuring seven payloads including the VELC instrument, aims to study the solar corona, solar wind, and space weather. Aditya-L1 represents a significant milestone in Indian space exploration.

1. India's ISRO is poised for the remarkable launch of the Aditya-L1 solar mission, following its successful moon mission, Chandrayaan-3.

2. The launch countdown for Aditya-L1 aboard PSLV C57 began with the mission set to embark on a 125-day journey to the Sun.

3. ISRO Chairman S Somanath states that the mission aims to reach the exact radius at Lagrangian Point 1 (L1).

4. Aditya-L1 is designed to observe the solar corona remotely and conduct in-situ analysis of the solar wind at L1, located approximately 1.5 million kilometers from Earth.

5. ISRO highlights the advantage of the L1 point in the Halo orbit, which provides uninterrupted solar observation without the occurrence of eclipses.

6. The Sun's proximity allows for detailed study, offering insights into not only our Sun but also stars in the Milky Way and other galaxies.

7. The Sun exhibits eruptive phenomena and releases significant energy in the solar system, which, if directed toward Earth, can impact the near-Earth space environment.

8. Timely detection of such solar events is crucial for safeguarding spacecraft and communication systems from potential disturbances.

9. ISRO has deployed the 'XL' variant of the PSLV rocket, known for its robust performance, to carry Aditya-L1 with its seven payloads, including the VELC instrument.

10. Of the seven payloads, four will directly observe the Sun, while three will conduct in-situ studies of particles and fields at L1.

11. The spacecraft will initially be placed in a low Earth orbit and gradually transition to a large halo orbit around L1 over approximately four months.

12. Aditya-L1's key goals include understanding coronal heating, Coronal Mass Ejections (CME), solar activities, and space weather, with the VELC payload capturing and transmitting vital solar images to ground stations.

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First Published Date: 02 Sep, 10:14 IST
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