论文标题
天气轨道选择中的避免日食
Eclipse avoidance in TianQin orbit selection
论文作者
论文摘要
在未来的以地理为中心的空间引力波观测任务中，由于穿过月球和地球的阴影而导致的日食会对科学克拉夫特的热稳定性和稳定的电源产生负面影响。在轨道设计中应尽可能减少这种情况。关于天气的圆形高轨道，我们应对避免日食并稳定几乎等边三角形星座的综合挑战。提出了两种策略，包括与月球的初始相位选择和轨道大小至1：8的轨道共鸣，后者涉及将天然气的初步轨道半径稍微提高$ 1 \ times 10^5 $ km至$ \ sim \ sim 100900 $ km。结果，我们已经确定了$ \ sim 15^\ circ $允许的初始相位范围，在2034年开始的5年任务中，可以在3+3个月的观测窗口中保持不含Eclipse的纯度范围，同时满足了星座稳定性的要求。因此，可以在很大程度上解决天气的日食问题。
In future geocentric space-based gravitational-wave observatory missions, eclipses due to passing through the Moon's and Earth's shadows can negatively impact the sciencecraft's thermal stability and steady power supply. The occurrence should be reduced as much as possible in orbit design. In regard to TianQin's circular high orbits, we tackle the combined challenges of avoiding eclipses and stabilizing the nearly equilateral-triangle constellation. Two strategies are proposed, including initial phase selection and orbit resizing to 1:8 synodic resonance with the Moon, where the latter involves slightly raising TianQin's preliminary orbital radius of $1\times 10^5$ km to $\sim 100900$ km. As the result, we have identified pure-gravity target orbits with a permitted initial phase range of $\sim 15^\circ$, which can maintain eclipse-free during the 3+3 month observation windows throughout a 5-year mission started in 2034, and meanwhile fulfil the constellation stability requirements. Thereby the eclipse issue for TianQin can be largely resolved.
