Context

• According to information provided by S Somnath, Chairman of the Indian Space and Research Organization (ISRO), India's first solar mission Aditya will be successfully deployed at the L1 Lagrangian point (L1) on January 6, 2024.

Aditya L-1 Mission:

Background

• ISRO launched the country's first solar mission - Aditya-L1, on September 2 from the Dhawan Space Center in Sriharikota, which is very close to its successful landing.
• Aditya L-1 will be placed near the L-1 Lagrange/Lagrangian point located between the Sun and the Earth.
• This mission has been launched through the XL version rocket of PSLV-C57.
• Spacecraft 'Aditya L-1' is India's first space mission to study the Sun.

Key Points

• Two state-of-the-art instruments, Solar Wind Ion Spectrometer (SWIS) and Suprathermal and Energetic Particle Spectrometer (STEPS) onboard Aditya L1 have started their work.
• The photo taken by the Swiss provides information about energy variations in proton and alpha particle calculations.
• The spectrometer on board Aditya-L1 recorded the first solar flares by the Aditya-L1 spacecraft on October 29, 2023.

Benefits of Spacecraft Aditya L1

• This spacecraft will find out the causes of solar eruption events.
• It is noteworthy that solar flare is a sudden event.
• Solar flares produce rays of increased energy across the electromagnetic spectrum, including radio, optical, UV, soft X-ray, hard X-ray and gamma-ray wavelengths.
• However, the Aditya-L1 mission will neither land on the Sun nor come close to the Sun. This strategic location will enable Aditya-L1 to observe the Sun continuously without interruption at the Lagrangian point, helping scientists assess solar activities and their impact on space weather in real time.
• The spacecraft Aditya L1 will help identify the key processes that give rise to solar eruption events.

Important facts for exam

Lagrangian point-1

• L1 stands for 'Lagrangian/'Lagrange Point-1', which is one of the five points located in the orbit of the Earth-Sun system.
• A satellite located at 'Lagrangian Point-1', due to its special position, is able to see the Sun continuously despite an eclipse or any other such obstruction.

ISRO

• Founder: Vikram Sarabhai
• Headquarters: Bengaluru, Karnataka
• Current Chairman: Shri S. Somnath

Other missions to study the Sun

• Parker Solar Probe(NASA)
• Helios 2 Solar Probe(NASA,ESA)
• Solar Orbiter(NASA,ESA)