MMS-4 FPI DES Level-2 Fast electron moments (CDF)

This dataset provides the moments of the electron distribution at the FAST cadence (4.5 s) computed from the full distribution function and corrected from a number of effects (including the spacecraft electrostatic potential). The dataset comprises the main moments: density, velocity vector, temperatures (and associated pressure tensor), and heat flux. They are provided in GSE frame. For more information on the FPI instruments, data set, and user guide, please see: MMS Science Data Center (https://lasp.colorado.edu/mms/sdc/public/datasets/fpi/) MMS FPI Data Users and Products Guide (https://lasp.colorado.edu/galaxy/display/MFDPG/MMS+FPI+Data+Users+and+Products+Guide) FPI Release Notes (https://lasp.colorado.edu/mms/sdc/public/datasets/fpi/mms-FPIReleaseNotes-220217.pdf)

搜集汇总

背景与挑战

背景概述

该数据集来自MMS任务第4颗卫星的FPI仪器DES子系统，提供电子分布的快速时刻（4.5秒分辨率），包括密度、速度、温度和热流等关键参数，并已校正航天器静电势等效应，数据以GSE坐标系呈现。时间覆盖2015年至2018年，观测区域涵盖地球磁层、磁鞘、辐射带等多个空间环境，适用于等离子体物理和空间天气研究。数据集以CDF格式存储，包含丰富的参数如能量谱和误差估计，具有高精度和广泛适用性。