Arid
DOI10.3847/1538-3881/153/2/87
ANALYZING METEOROID FLIGHTS USING PARTICLE FILTERS
Sansom, E. K.1; Rutten, M. G.2; Bland, P. A.1
通讯作者Sansom, E. K.
来源期刊ASTRONOMICAL JOURNAL
ISSN0004-6256
EISSN1538-3881
出版年2017
卷号153期号:2
英文摘要

Fireball observations from camera networks provide position and time information along the trajectory of a meteoroid that is transiting our atmosphere. The complete dynamical state of the meteoroid at each measured time can be estimated using Bayesian filtering techniques. A particle filter is a novel approach to modeling the uncertainty in meteoroid trajectories and incorporates errors in initial parameters, the dynamical model used, and observed position measurements. Unlike other stochastic approaches, a particle filter does not require predefined values for initial conditions or unobservable trajectory parameters. The Bunburra Rockhole fireball, observed by the Australian Desert Fireball Network (DFN) in 2007, is used to determine the effectiveness of a particle filter for use in fireball trajectory modeling. The final mass is determined to be 2.16 +/- 1.33 kg with a final velocity of 6030 +/- 216 ms(-1), similar to previously calculated values. The full automatability of this approach will allow an unbiased evaluation of all events observed by the DFN and lead to a better understanding of the dynamical state and size frequency distribution of asteroid and cometary debris in the inner solar system.


英文关键词meteorites, meteors, meteoroids methods: observational methods: statistical
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000395432700011
WOS关键词STATE ESTIMATION ; FRAGMENTATION ; ABLATION ; BODIES ; ORBIT ; MODEL
WOS类目Astronomy & Astrophysics
WOS研究方向Astronomy & Astrophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197580
作者单位1.Curtin Univ, Appl Geol, Perth, WA, Australia;
2.Def Sci & Technol Grp, Edinburgh, SA, Australia
推荐引用方式
GB/T 7714
Sansom, E. K.,Rutten, M. G.,Bland, P. A.. ANALYZING METEOROID FLIGHTS USING PARTICLE FILTERS[J],2017,153(2).
APA Sansom, E. K.,Rutten, M. G.,&Bland, P. A..(2017).ANALYZING METEOROID FLIGHTS USING PARTICLE FILTERS.ASTRONOMICAL JOURNAL,153(2).
MLA Sansom, E. K.,et al."ANALYZING METEOROID FLIGHTS USING PARTICLE FILTERS".ASTRONOMICAL JOURNAL 153.2(2017).
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