The Satellites for Auroral Tomography in Space (SATIS) Project: Tomographic Reconstruction of the Auroral Emissions From Space

Elisa Robert;Mathieu Barthelemy;Thierry Sequies
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Abstract

The satellites for auroral tomography in space (SATIS) project is a mission concept that proposes to perform auroral tomography from space using imagers placed on a constellation of satellites. Auroral tomography is particularly interesting for reconstructing the flux of particles precipitating into the atmosphere. The advantage of space observations is that they avoid cloud cover problems, allowing larger set of data and with a dedicated ground-based infrastructure ensure quasi-continuous monitoring. However, the main difficulty of this mission is to synchronize orbits and attitudes of the satellites in order to observe the same volume of emission at the same time and from different perspectives. The attitude and determination control system will thus have to be very precise and stable. The data volume is also an issue especially in a monitoring point of view. Furthermore, atmospheric drag will have to be correctly considered to limit orbit disturbances and keep satellites synchronized. We present here the preliminary study of this project and the initial requirements identified to be able to perform this mission concept.
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空间极光层析成像卫星(SATIS)项目:空间极光发射层析成像重构
空间极光层析成像卫星(SATIS)项目是一个飞行任务概念,建议利用卫星星座上的成像仪从空间进行极光层析成像。极光层析成像对于重建沉降到大气中的粒子通量特别有意义。空间观测的优点是可以避免云层覆盖问题,可以获得更多的数据集,并通过专门的地面基础设施确保准连续监测。不过,这次飞行任务的主要困难是使卫星的轨道和姿态同步,以便在同一时间从不同角度观察相同的发射量。因此,姿态和确定控制系统必须非常精确和稳定。数据量也是一个问题,特别是从监测的角度来看。此外,还必须正确考虑大气阻力,以限制轨道干扰并保持卫星同步。我们在此介绍该项目的初步研究以及为执行这一飞行任务概念而确定的初步要求。
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2024 Index IEEE Journal on Miniaturization for Air and Space Systems Vol. 5 Table of Contents Front Cover The Journal of Miniaturized Air and Space Systems Broadband Miniaturized Antenna Based on Enhanced Magnetic Field Convergence in UAV
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