Active spacecraft formation flying collision avoidance schemes monitor collision risk through indicators such as miss distance and collision probability. This paper compares instantaneous collision probability measures based on planar projections to their three-dimensional counterparts. In this analysis, it is found that the former overestimate the latter. Additionally, this work compares the consistency of risk assessments based on miss distance and instantaneous collision probability in closed Clohessy–Wiltshire trajectories. Certain statistics of relative position are well suited for collision risk assessments because their local minima and collision probability local maxima are anticorrelated. These results are a step toward connecting both types of indicators into a cohesive mathematical framework relating to collision risk.
Relating Collision Probability and Separation Indicators in Spacecraft Formation Collision Risk Analysis
Journal of Guidance, Control, and Dynamics ; 45 , 3 ; 517-532
2022-01-18
16 pages
Article (Journal)
Electronic Resource
English
Spacecraft collision probability
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