Aditya-L1’s advanced sensors have achieved a significant milestone in their solar mission. ISRO has confirmed that the sensors have effectively identified the impact of coronal mass ejections (CMEs). Let’s delve into the scientific significance of this accomplishment.
The Plasma Analyser Package for Aditya (PAPA) payload serves as an energy and mass analyser, designed for in-situ measurements of solar wind electrons and ions in the low energy range, ISRO notes. Now, PAPA is outfitted with two sensors: the Solar Wind Electron Energy Probe (SWEEP) and the Solar Wind Ion Composition Analyser (SWICAR). These sensors enable the precise measurement of electrons and ions across a spectrum of energy ranges 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 Observations
ISRO statements elaborate on the observations, detailing the abrupt increase in total electron and ion counts during the December 15, 2023, CME event, contrasting with the multiple minor events observed between February 10-11, 2024.
PAPA’s SWEEP and SWICAR sensors are currently engaged in continuous observations of solar wind electrons and ions, demonstrating their operational efficiency and adherence to design specifications.
The effectiveness of PAPA in monitoring space weather conditions and analyzing solar phenomena underscores its pivotal role in advancing space research and exploration.
The successful launch of Aditya-L1 by ISRO’s PSLV-C57 rocket on September 2 marks a significant achievement in India’s space exploration endeavors. Aditya-L1 spacecraft carries seven payloads, including four for observing solar light and three for measuring plasma and magnetic fields, facilitating a comprehensive study of the Sun. Aditya-L1 is placed in a halo orbit around the Lagrangian Point 1 (L1), situated 1.5 million km from Earth in the direction of the Sun, allowing continuous observation of solar activities.