论文标题
Lyra项目：1i/'Oumuamua的另一个可能的轨迹
Project Lyra: Another Possible Trajectory to 1I/'Oumuamua
论文作者
论文摘要
1i/'Oumuamua的第一个星际对象在2017/2018年通过内部太阳能系统进行了跟踪时，表现出各种不寻常的特性。就潜在的科学回报而言，拦截和研究原位的航天器任务是无价的。作为对先前项目Lyra研究的扩展，本文详细阐述了1i/'Oumuamua的替代任务，这次还要求木星Oberth机动（JOM）将航天器加速到其目的地。区别在于，剥削的行星flybys的结合是到达木星，其中包括火星遭遇，然后再去木星。所确定的轨迹不如先前的发现，就较高的$ΔV$要求（15.6 $ kms^{ - 1} $），更长的飞行持续时间（29年）和更少的任务准备时间（启动2026）（启动2026），但是它受益于以前的JOM候选人所缺乏的功能，因为这是少量或没有$ΔV$的途径（i.e e En. noter）。推进剂阶段。这被木星所需的较高$ΔV$略微抵消，需要2或3个上演的固体火箭电动机。例如，到2059年，具有蓖麻30B助推器的猎鹰重力消耗性，随后是恒星48B可以将102kg至1i/'Oumuamua提供。
The first interstellar object to be discovered, 1I/'Oumuamua, exhibited various unusual properties as it was tracked on its passage through the inner solar system in 2017/2018. In terms of the potential scientific return, a spacecraft mission to intercept and study it in situ would be invaluable. As an extension to previous Project Lyra studies, this paper elaborates an alternative mission to 1I/'Oumuamua, this time also requiring a Jupiter Oberth Manoeuvre (JOM) to accelerate the spacecraft towards its destination. The difference is in the combination of planetary flybys exploited to get to Jupiter, which includes a Mars encounter before proceeding to Jupiter. The trajectory identified is inferior to previous finds in terms of higher $ΔV$ requirement (15.6 $kms^{-1}$), longer flight duration (29 years) and less mission preparation time (launch 2026), however it benefits from a feature absent from previous JOM candidates, in that there is little or no $ΔV$ en route to Jupiter (i.e. a free ride) which means the spacecraft need not carry a liquid propellant stage. This is marginally offset by the higher $ΔV$ needed at Jupiter, requiring either 2 or 3 staged solid rocket motors. As an example, a Falcon Heavy Expendable with a CASTOR 30B booster followed by a STAR 48B can deliver 102kg to 1I/'Oumuamua by the year 2059. Other scenarios with shorter flight durations and higher payload masses are possible.
