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Collision risk assessment for constellation satellites Based on A Multidisciplinary Space Debris Evolution Model

  • Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In recent years, the expansion of mega-constellations has intensified the degradation of the space debris environment, increasing risks to spacecraft safety. This study develops a multidisciplinary space debris evolution model that integrates topological networks, fluid mechanics, and spacecraft dynamics to characterize object relationships and enable efficient environment prediction. Building on this, a collision probability algorithm is proposed. Application to constellation satellites in Low Earth Orbit (LEO) shows that intra-constellation collisions dominate operational risks, while deorbiting risks peak when satellites cross the Starlink operational region.

Original languageEnglish
Title of host publication23rd IAA Symposium on Space Debris - Held at the 76th International Astronautical Congress, IAC 2025
PublisherInternational Astronautical Federation, IAF
Pages719-723
Number of pages5
ISBN (Electronic)9798331329273
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event23rd IAA Symposium on Space Debris at the 76th International Astronautical Congress, IAC 2025 - Sydney, Australia
Duration: 29 Sept 20253 Oct 2025

Publication series

NameProceedings of the International Astronautical Congress, IAC
Volume2-F218712
ISSN (Print)0074-1795

Conference

Conference23rd IAA Symposium on Space Debris at the 76th International Astronautical Congress, IAC 2025
Country/TerritoryAustralia
CitySydney
Period29/09/253/10/25

Keywords

  • collision risks
  • evolution model
  • fluid mechanics
  • space debris

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