Abstract

INFANTE is an ambitious Portuguese project of a small satellite for Earth observation using synthetic aperture radar and multispectral camera. The mission is a precursor and a technology demonstrator for a constellation for home waters coverage. The satellite will be deployed on a relatively low Earth orbit due to the SAR and power budget requirements. The restrictions on the altitude and the stabilization accuracy are relatively tight. Orbital and angular motion simulation results are reported in the paper. The possibility of the mission implementation using available attitude control and determination low-cost hardware is confirmed. Despite the low orbit altitude, the necessity of the orbit maintenance is questioned due to the specific satellite shape.

中文翻译：

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小型卫星SAR任务INFANTE的轨道和角动力学分析

摘要

INFANTE是葡萄牙的一个雄心勃勃的项目，该项目使用合成孔径雷达和多光谱相机对地球进行观测的小型卫星。该任务是用于家庭水域覆盖的星座的前身和技术演示者。由于SAR和功率预算的要求，该卫星将被部署在相对较低的地球轨道上。高度和稳定精度的限制相对严格。本文报道了轨道和角运动的模拟结果。使用可用的姿态控制和确定低成本硬件的任务实施可能性得到了确认。尽管轨道高度较低，但由于特定的卫星形状，对轨道维护的必要性提出了质疑。