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Payload on ISRO’s Aditya-L1 mission detects the impact of coronal mass ejections on solar wind

The advanced sensors on Aditya-L1 have reached an important milestone in their mission to study the sun. ISRO has confirmed that these sensors have successfully detected the impact of coronal mass ejections (CMEs). Let’s explore why this achievement is significant scientifically.

The Plasma Analyser Package for Aditya (PAPA) payload is equipped with sensors designed to analyse the energy and mass of solar wind particles. According to ISRO, PAPA has two sensors: the Solar Wind Electron Energy Probe (SWEEP) and the Solar Wind Ion Composition Analyser (SWICAR). These sensors allow for precise measurements of electrons and ions across various energy levels and masses.

Data collected by PAPA revealed the occurrence of CME events, notably on December 15, 2023, and during February 10-11, 2024, providing insights into solar phenomena.

ISRO’s statements provide further insight into the observations, highlighting a sudden rise in both total electron and ion counts during the CME event on December 15, 2023, compared to several smaller events observed between February 10-11, 2024.

The SWEEP and SWICAR sensors of PAPA are presently conducting ongoing observations of solar wind electrons and ions, showcasing their operational effectiveness and adherence to design standards.

The success of PAPA in tracking space weather conditions and studying solar events emphasizes its crucial contribution to the progress of space research and exploration.

The successful launch of Aditya-L1 aboard ISRO’s PSLV-C57 rocket on September 2 represents a major milestone in India’s space exploration efforts. Aditya-L1 carries seven payloads, comprising four for observing solar light and three for measuring plasma and magnetic fields. This configuration enables a thorough examination of the Sun. Positioned in a halo orbit around Lagrangian Point 1 (L1), which lies 1.5 million kilometers from Earth in the Sun’s direction, Aditya-L1 offers uninterrupted observation of solar activities.

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