Assessing Collision Probability in Low-Thrust Deorbit

Shuta Fukii, Daisuke Sakai, Yasuhiro Yoshimura, Yuri Matsushita, Toshiya Hanada, Yuki Itaya, Tadanori Fukushima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


End-of-life support of satellites is necessary to improve post-mission-disposal compliance rates for maintaining space environment. Deorbit mission with low thrust, e.g. a laser, induces a low-level deceleration on the target object that gradually lowers the target altitude. Since such a low-thrust trajectory is time-consuming, the risk of collision greatly influences the mission success rate. In this context, this paper assesses the collision risk during deorbit trajectories with low thrust. Furthermore, parametric studies for the relationship between the re-entry time and the risk of collision are performed.

Original languageEnglish
Pages (from-to)47-55
Number of pages9
JournalJournal of Space Safety Engineering
Issue number1
Publication statusPublished - Mar 2022

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Safety, Risk, Reliability and Quality


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