Abstract Details


Name: Vipin Kumar Yadav
Affiliation: SPL / VSSC / ISRO
Conference ID: TVS202510195
Title: Science with Aditya-L1 MAG
Authors and Co-Authors:
Abstract Type: Invited by SOC
Abstract: The first Indian Solar mission to first Lagrangian (L1) point, Aditya-L1, is now placed in a halo-orbit around it and is continuously observing the Sun. Of the seven payloads onboard and one of the three in-situ payloads, is a fluxgate magnetometer (MAG) to measure the interplanetary magnetic field (IMF) coming from the Sun towards the Earth. The MAG is a dual triaxial sensor set which is mounted on a 6 m long boom with one set at 3 m away from the spacecraft and the other at the tip of boom. After the L1 orbit insertion in January, 2024, the MAG boom was deployed on which the two sensors are mounted and the regular recording of the local IMF commenced which typically varies between 5 – 10 nT in a normal Earth day. Since then MAG has observed several extreme solar events such as coronal mass ejections (CMEs) during the months of March, May, August, September, and October in the year 2024 which are seen as the enhancement in the IMF during the passage of that event at L1 point. During some of these events, namely, in March, May and October, 2024, the analysis of power spectral density (PSD) for all the three IMF components is carried out which shows that the IMF fluctuations in the solar wind are consistent with Kolmogorov turbulence slope near -5/3. In this paper all these observations shall be presented.