Predicting RSO Populations Using a Neighbouring Orbits Technique

Benjamin F. CookeCentre for Space Domain Awareness, University of Warwick, UKDepartment of Physics, University of Warwick, UK, James A. BlakeCentre for Space Domain Awareness, University of Warwick, UKDepartment of Physics, University of Warwick, UK, Paul ChoteCentre for Space Domain Awareness, University of Warwick, UKDepartment of Physics, University of Warwick, UK, James McCormacCentre for Space Domain Awareness, University of Warwick, UKDepartment of Physics, University of Warwick, UK, Don PollaccoCentre for Space Domain Awareness, University of Warwick, UKDepartment of Physics, University of Warwick, UK
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Abstract

The determination of the full population of Resident Space Objects (RSOs) in Low Earth Orbit (LEO) is a key issue in the field of space situational awareness that will only increase in importance in the coming years. We endeavour to describe a novel method of inferring the population of RSOs as a function of orbital height and inclination for a range of magnitudes. The method described uses observations of an orbit of known height and inclination to detect RSOs on neighbouring orbits. These neighbouring orbit targets move slowly relative to our tracked orbit, and are thus detectable down to faint magnitudes. We conduct simulations to show that, by observing multiple passes of a known orbit, we can infer the population of RSOs within a defined region of orbital parameter space. Observing a range of orbits from different orbital sites will allow for the inference of a population of LEO RSOs as a function of their orbital parameters and object magnitude.
利用邻近轨道技术预测 RSO 星群
确定低地球轨道(LEO)上全部驻留空间物体(RSO)的数量是空间态势感知领域的一个关键问题,其重要性在未来几年内将与日俱增。我们试图描述一种推断驻留天体数量的新方法,它是轨道高度和倾角在一定范围内的函数。所述方法利用对已知高度和倾角的轨道的观测来探测邻近轨道上的 RSO。这些邻近轨道目标相对于我们跟踪的轨道移动较小,因此可以探测到微弱的星等。我们进行了模拟实验,结果表明,通过对已知轨道的多次观测,我们可以推断出轨道参数空间限定区域内的 RSO 群。从不同的轨道站点观测一系列轨道,就可以推断出低地球轨道 RSO 的数量,并将其作为轨道参数和天体亮度的函数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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