This paper introduces efforts to estimate the environmental change due to on-orbit satellite fragmentations from in-situ measurements of the sub-millimeter-sized debris. Estimating the current environment of sub-millimeter-sized debris is important for designing spacecraft, especially for a protection perspective. First, therefore, this paper introduces a dynamical environmental model to define and dynamically update the current environment of sub-millimeter-sized debris. This model can also accommodate the environmental change due to on-orbit satellite fragmentations by applying an adaptive Monte Carlo filter. Identifying the origin of sub-millimeter-sized debris is also important to estimate the environmental change due to on-orbit satellite fragmentations. Second, therefore, this paper demonstrates that the exploded object can be identified using in-situ measurements of sub-millimeter-sized debris alone by applying a nonlinear model fitting. Finally, this paper also demonstrates that identifying the two objects collided is possible with a little extra effort to the method for the exploded object.
Hattori et al. (Thu,) studied this question.