A search strategy applicable for breakup fragments in highly elliptical orbit

Yuki Itaya, Koki Fujita, Toshiya Hanada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study aims to devise an effective search strategy for fragments in Highly Elliptical Orbit by developing a precise estimation scheme for the initial breakup states and by updating a population evaluating scheme of the previous studies. As for the estimation of the initial breakup state, a newly developed equation was introduced. This equation restricts initial distribution of orbital planes of fragments by using the parental object's right ascension, and declination. The advantage of this constraint is that the fragments can be evaluated by using only two orbital elements which can guarantee relatively high propagation accuracy. A hybrid scheme combined with close approach analysis was proposed to estimate the initial breakup state including the breakup date and time. In the observation planning, this study utilized previous strategy aimed for breakups in Geostationary Orbit. This study upgraded the previous strategy by introducing separation angle between observation direction and direction of a fragment, so that high latitude areas are also evaluated properly. As a result, by using officially reported data, it was confirmed that the initial state estimation scheme for breakup can estimate the initial state precisely, and upgraded method can evaluate the population of fragments having high inclination.

Original languageEnglish
Title of host publication68th International Astronautical Congress, IAC 2017
Subtitle of host publicationUnlocking Imagination, Fostering Innovation and Strengthening Security
PublisherInternational Astronautical Federation, IAF
Pages332-339
Number of pages8
ISBN (Print)9781510855373
Publication statusPublished - Jan 1 2017
Externally publishedYes
Event68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017 - Adelaide, Australia
Duration: Sep 25 2017Sep 29 2017

Publication series

NameProceedings of the International Astronautical Congress, IAC
Volume1
ISSN (Print)0074-1795

Other

Other68th International Astronautical Congress: Unlocking Imagination, Fostering Innovation and Strengthening Security, IAC 2017
CountryAustralia
CityAdelaide
Period9/25/179/29/17

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Itaya, Y., Fujita, K., & Hanada, T. (2017). A search strategy applicable for breakup fragments in highly elliptical orbit. In 68th International Astronautical Congress, IAC 2017: Unlocking Imagination, Fostering Innovation and Strengthening Security (pp. 332-339). (Proceedings of the International Astronautical Congress, IAC; Vol. 1). International Astronautical Federation, IAF.