Introduction
The Indian Space Research Organisation (ISRO) achieved yet another milestone on 6 August 2026 with the successful launch of the Aditya-L2 solar observation mission from the Satish Dhawan Space Centre (SDSC) in Sriharikota, Andhra Pradesh. Launched aboard the Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III / LVM3), Aditya-L2 is India's second dedicated solar mission following Aditya-L1, and carries advanced instruments to study solar flares, coronal mass ejections, and space weather dynamics.
Mission Objectives
- Solar corona study: Investigate the temperature structure and dynamics of the solar corona using a next-generation coronagraph
- Solar flares and CMEs: Monitor and characterise solar flares and Coronal Mass Ejections (CMEs) to improve space weather prediction
- Solar wind measurement: In-situ measurement of solar wind composition and plasma parameters
- Solar irradiance monitoring: Continuous monitoring of solar irradiance variations impacting Earth's climate
Launch Vehicle and Orbit
- Launch vehicle: GSLV Mk III (LVM3-M5), India's heaviest launch vehicle
- Launch site: SDSC SHAR, Sriharikota, Andhra Pradesh
- Launch date: 6 August 2026, 03:45 IST
- Target orbit: Sun-Earth Lagrange Point 1 (L1), approximately 1.5 million km from Earth
Scientific Payloads
Aditya-L2 carries seven scientific payloads, an upgrade over Aditya-L1's instruments:
- SUIT-2 (Solar Ultraviolet Imaging Telescope): Higher-resolution imaging of the solar photosphere and chromosphere
- COROS-2 (Visible Emission Line Coronagraph): Advanced corona imaging and spectroscopy
- PEP (Plasma Experiment Package): In-situ solar wind plasma analysis
- SOLAR-IR: Infrared solar irradiance measurement for climate studies
Tamil Nadu Connection
- Sriharikota is located approximately 100 km north of Chennai, making it the nearest spaceport to Tamil Nadu
- Several payloads were fabricated with participation from institutions including the Indian Institute of Technology Madras (IIT-M)
- The ANTYODAYA satellite integration facility at ISRO's U R Rao Satellite Centre (URSC) in Bengaluru includes engineers of Tamil Nadu origin
Key Facts for TNPSC
- ISRO Chairman: Dr. S. Somanath
- Launch vehicle: GSLV Mk III / LVM3-M5
- Mission type: Solar observation mission
- India's solar missions: Aditya-L1 (2023) and Aditya-L2 (2026)
- Lagrange Point L1: 1.5 million km from Earth toward the Sun
- SDSC SHAR location: Sriharikota, Tirupati district, Andhra Pradesh
- LVM3 first launch: 2014 (developmental flight)
Exam Perspective
For TNPSC and UPSC aspirants: Remember the sequence — India's first solar mission was Aditya-L1 (2023), Aditya-L2 is the second. Lagrange Points are positions in space where the gravitational forces of two large bodies (Sun-Earth) balance. There are 5 Lagrange Points (L1-L5); L1 is sunward of Earth. GSLV Mk III / LVM3 is ISRO's heavy-lift launcher. SDSC SHAR is in Sriharikota, Andhra Pradesh, on the Baruva coast. IIT Madras contributed to payload development.
Conclusion
The Aditya-L2 launch reinforces India's position as a leading space-faring nation with growing expertise in solar physics. Together with the Chandrayaan programme and upcoming human spaceflight missions, ISRO continues to set benchmarks in cost-effective, high-value space exploration that serves both scientific knowledge and national development priorities.