Despite the transfer of many typical functionalities to very small satellites, precision attitude and orbit control capabilities are still a domain of conventional large satellites. UWE-4 has now demonstrated orbit control capabilities on board of a pico-satellite for the first time. The orbit altitude of UWE-4 was raised and lowered using the electric propulsion system NanoFEEP. An early detected collision danger enabled the execution of an avoidance maneuver in July 2020 to increase the distance of closest approach. This contribution describes the UWE-4 orbit control system and the related evaluations during operations.

中文翻译：

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微型卫星的防撞和轨道控制的首次演示— UWE-4

尽管将许多典型功能转移到了非常小的卫星上，但精确的姿态和轨道控制能力仍然是常规大型卫星的一个领域。现在，UWE-4首次在微微卫星上展示了轨道控制功能。使用电动推进系统NanoFEEP可以升高和降低UWE-4的轨道高度。早期发现的碰撞危险使得能够在2020年7月执行回避行动，以增加最接近进近的距离。该文稿描述了UWE-4轨道控制系统以及运行期间的相关评估。