论文标题
评估和最小化卫星巨型施工中的冲突
Assessing and Minimizing Collisions in Satellite Mega-Constellations
论文作者
论文摘要
我们旨在为卫星操作员和研究人员提供有效的手段，以评估和减轻大型构造设计过程中的碰撞风险。我们首先建立了一个基线，用于评估各种技术，以进行近距离预测和碰撞概率计算（Hoots etal。1984，Gronchi 2005，Jeongahn和Malhotra 2015），通过执行蛮力数值模拟并使用过滤器来大大减少算法的计算付款。接下来，我们在OneWeb Leo和SpaceX Starlink Mega-Costellations的预期部署之后估计轨道环境中的连接事件。作为最后一步，我们研究了最小空间占用率（Miso）轨道（Bombardelli等人，2018年），该轨道是对著名的冷冻轨道的概括，这些轨道解释了Earth-Moon-Moon-sun-Satellite系统的扰动keplerian动力学。如Bombardelli等人的建议，我们评估了提出的巨型构造的误配能力。 2018年，以降低内源性（内施加）碰撞的风险。结果表明，通过对星座卫星的名义轨道元素几乎无法区分的调整，采用误差轨道构型可以显着降低风险。
We aim to provide satellite operators and researchers with an efficient means for evaluating and mitigating collision risk during the design process of mega-constellations. We first establish a baseline for evaluating various techniques for close-encounter prediction and collision-probability calculation (Hoots et al. 1984, Gronchi 2005, JeongAhn and Malhotra 2015) by carrying out brute-force numerical simulations and using a sequence of filters to greatly reduce the computational expense of the algorithm. Next, we estimate conjunction events in the orbital environment following the anticipated deployments of the OneWeb LEO and SpaceX Starlink mega-constellations. As a final step, we investigate Minimum Space Occupancy (MiSO) orbits (Bombardelli et al. 2018), a generalization of the well-known frozen orbits that account for the perturbed-Keplerian dynamics of the Earth-Moon-Sun-satellite system. We evaluate the ability of MiSO configurations of the proposed mega-constellations, as suggested by Bombardelli et al. 2018, to reduce the risk of endogenous (intra-constellation) collisions. The results indicate that the adoption of the MiSO orbital configuration can significantly reduce risk with nearly indistinguishable adjustments to the nominal orbital elements of the constellation satellites.
