IIA scientists generate Doppler velocity images of solar corona using Aditya-L1 satellite data
GS3Economy · S&T · Environment · Security· Space technology (ISRO, missions)· Prelims·
Space weather monitoring and solar physics: a key GS3 Science & Technology topic.
Why in news
Scientists at the Indian Institute of Astrophysics (IIA) generated Doppler velocity images of solar corona activities using data from the Aditya-L1 satellite's VELC payload.
Background
The images were generated using data from the Visible Emission Line Coronagraph (VELC) payload on the Aditya-L1 satellite. The software, developed by Dr. V. Muthupriyal, is designed to track coronal mass ejections toward Earth.
Facts for Prelims
- S&TVELC: Visible Emission Line Coronagraph is a payload on the Aditya-L1 satellite.
- PostDr. V. Muthupriyal developed the software for tracking coronal mass ejections.
- FactThe Doppler velocity images were published in the Astrophysical Journal on October 20, 2026.
Prelims practice question
Which payload on the Aditya-L1 satellite was used to generate Doppler velocity images of the solar corona?
- (a)Visible Emission Line Coronagraph
- (b)Solar Ultraviolet Imaging Telescope
- (c)X-ray Module
- (d)Plasma and Magnetic Field Instrument
Show answer
Answer: (a) Visible Emission Line Coronagraph — The note specifies that the images were generated using data from the Visible Emission Line Coronagraph (VELC) payload.
For Mains
Q. Discuss the significance of India's Aditya-L1 mission in enhancing space weather forecasting and its implications for protecting terrestrial infrastructure.
Dimensions to cover in your answer
- Space weather risk: Impact of coronal mass ejections on satellite communications and power grids
- Data sovereignty: India's growing capacity for independent solar observation and data dissemination
Keywords: Space Weather · Coronal Mass Ejections · Solar Corona · Aditya-L1 · Doppler Velocity
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