Aditya-L1 and Proba-3 jointly observe coronal mass ejections
Quick dive
- Indian and international scientists combined Aditya-L1 VELC data with Proba-3 ASPIICS observations to study coronal mass ejections close to the Sun.
- ASPIICS supplied sharp images for estimating a CME’s shape, dynamics and mass, while VELC provided spectroscopic information on gas near two million degrees.
- The instruments shared a field of view in the low corona; only two CMEs, on September 14 and 16, were observed simultaneously between July and December 2025.
- Aditya-L1 launched on September 2, 2023, while ESA’s Proba-3 launched from Sriharikota on December 5, 2024; the two spacecraft are about 150 metres apart.
- exam_relevance: tests coronagraphy, spectroscopy, CME physics and the distinct contributions of India’s Aditya-L1 and ESA’s formation-flying Proba-3, an exact mission-instrument pairing.
Full explanation
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