Space Debris Modeling In Japan

Paper number

IAC-07-A6.2.04

Author

Ms. Satomi Kawamoto, Japan Aerospace Exploration Agency (ISTA/JAXA), Japan

Coauthor

Dr. Akira Kato, Japan Aerospace Exploration Agency (JAXA), Japan

Coauthor

Mr. Tomohiro Narumi, Kyushu University, Japan

Coauthor

Prof. Toshiya Hanada, Kyushu University, Japan

Year

2007

Abstract

This paper describes the current status of some models and tools developed in Japan; debris evolutionary model, debris mitigation standard support tools, and debris collision risk analysis tools.
Debris evolutionary model for low Earth orbit, named LEODEEM is being developed at Kyushu University in collaboration with JAXA. This model is used for predicting the effects of future space operations including launch traffic, explosions and collisions. It is necessary to discuss effective mitigation measures to conserve orbital environment.
Debris mitigation standard support tools are to be used at spacecraft planning phases of each mission for performing debris risk assessments and determining compliance with JAXA's debris mitigation standard, JMR-003. Calculators included in this program can evaluate; probability of collision with large and small debris, orbital lifetime of spacecraft and its releasing objects, required dV and fuel for de-obit, reentry and collision avoidance maneuvers, and so on. ORDEM2000 (Orbital Debris Engineering Model) or MASTER2005 (ESA Meteoroid and Space Debris Terrestrial Environment Reference) is used to calculate debris flux. It also assists the users to conduct simplified reentry analysis using ORSAT-J (a modified version of the NASA Object Reentry Survival Analysis Tool, ORSAT).
Debris collision risk analysis tools will be used to calculate the debris collision probability for each surface of a spacecraft. For each impact, impact velocity, angle and impactor type is calculated by using MASTER2005. In addition to shape, attitude and orbit of the spacecraft, but shadowing effect need to be considered. This program will be capable of evaluating a probability of penetration by using the ballistic limit equations developed in hyper velocity impact studies.

Abstract document

IAC-07-A6.2.04.pdf

Manuscript document

IAC-07-A6.2.04.pdf (🔒 authorized access only).

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