行星防御
Precautionary Planetary Defence
摘要：
在行星防御紧急情况下是否尝试偏转的问题一直受到大量决策分析的影响（Schmidt 2018; SMPAG法律问题特设工作组2020）。假设的情况通常涉及一颗新发现的小行星，它在设定的时间尺度内具有很高的撞击概率。本文件论述了另外两个复杂问题：（1）由于存在人类撞击地球的风险，将飞行任务限制在小行星上;（2）对小行星进行积极管理，将其置于“安全港”，即使撞击风险低于“决定采取行动”的阈值。我们使用阿波菲斯作为一个案例研究，并解决这两个复杂性。
英文摘要：
The question of whether to attempt deflections during planetary defence emergencies has been subject to considerable decision-making analysis (Schmidt 2018; SMPAG Ad-Hoc Working Group on Legal Issues 2020). Hypothetical situations usually involve a newly discovered asteroid with a high impact probability on a set timescale. This paper addresses two further complexities: (1) limiting missions to an asteroid due to the risk of a human-caused Earth impact; and (2) active management of asteroids to place them in "safe harbours", even when impact risks are otherwise below "decision to act" thresholds. We use Apophis as a case study, and address the two complexities in turn.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
