Magnetic field experiment at L1 point onboard Aditya-L1 mission
Abstract
The Aditya-L1 mission is first Indian solar mission scheduled to be placed in a halo orbit around the first Lagrangian point (L1) of Sun-Earth system in the year 2019. The scientific payloads onboard Aditya-L1 spacecraft includes a Fluxgate magnetometer (FGM) to measure the local magnetic field which is necessary to supplement the outcome of other scientific experiments onboard. The in-situ vector magnetic field data at L-1 is essential for better understanding of the data provided by the particle and plasma analysis experiments, on board Aditya-L1 mission. Also, the dynamics of Coronal Mass Ejections (CMEs) can be better understood with the help of in-situ magnetic field data at the L1 point region. This data will also serve as crucial input for the short lead-time space weather forecasting models.The FGM is a dual range 3-axis magnetic sensor sits on a 6 m boom mounted on the EP-01 [Earth viewing Panel] deck and configured to deploy along the negative roll direction of the spacecraft. Two sets of such sensors are to be mounted- one at the boom tip (6 m from the spacecraft) and other somewhere in between the boom tip and spacecraft. The main science goals of this instrument is to measure the magnitude and nature of interplanetary magnetic field (IMF) locally and to study the disturbed magnetic conditions and extreme solar events by detecting the CME from Sun as a transient event. The secondary science goals are to study the impact of interplanetary structures and shock solar wind interaction on geo-space environment and to detect plasma waves emanating from the solar corona at L1 point.This paper gives the detailed scientific goals of this magnetic field experiment and brief technical details of the proposed FGM onboard Aditya-L1 spacecraft.
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E3726Y