Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    A novel approach to fireball modeling: The observable and the calculated

    237847.pdf (719.2Kb)
    Access Status
    Open access
    Authors
    Sansom, E.
    Bland, P.
    Paxman, Jonathan
    Towner, M.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Sansom, E. and Bland, P. and Paxman, J. and Towner, M. 2015. A novel approach to fireball modeling: The observable and the calculated. Meteoritics and Planetary Science. 50 (8): pp. 1423-1435.
    Source Title
    Meteoritics and Planetary Science
    DOI
    10.1111/maps.12478
    ISSN
    1086-9379
    School
    Department of Mechanical Engineering
    Remarks

    This open access article is distributed under the Creative Commons license https://creativecommons.org/licenses/by-nc-nd/4.0/

    URI
    http://hdl.handle.net/20.500.11937/5419
    Collection
    • Curtin Research Publications
    Abstract

    Estimating the mass of a meteoroid passing through the Earth's atmosphere is essential to determining potential meteorite fall positions. High-resolution fireball images from dedicated camera networks provide the position and timing for fireball bright flight trajectories. There are two established mass determination methods: the photometric and the dynamic. A new approach is proposed, based on the dynamic method. A dynamic optimization initially constrains unknown meteoroid characteristics which are then used in a parametric model for an extended Kalman filter. The extended Kalman filter estimates the position, velocity, and mass of the meteoroid body throughout its flight, and quantitatively models uncertainties. Uncertainties have not previously been modeled so explicitly and are essential for determining fall distributions for potential meteorites. This two-step method aims to automate the process of mass determination for application to any trajectory data set and has been applied to observations of the Bunburra Rockhole fireball. The new method naturally handles noisy raw data. Initial and terminal bright flight mass results are consistent with other works based on the established photometric method and cosmic ray analysis. A full analysis of fragmentation and the variability in the heat-transfer coefficient will be explored in future versions of the model.

    Related items

    Showing items related by title, author, creator and subject.

    • Characterising fireballs for mass determination: Steps toward automating the Australian desert fireball network
      Sansom, E.; Bland, Phil; Paxman, J.; Towner, Martin (2014)
      Determining the mass of a meteoroid passing through the Earth's atmosphere is essential to determining potential meteorite fall positions. This is only possible if the characteristics of these meteoroids, such as density ...
    • Determining Fireball Fates Using the α-β Criterion
      Sansom, Eleanor ; Gritsevich, M.; Devillepoix, Hadrien ; Jansen-Sturgeon, Trent; Shober, Patrick; Bland, Phil ; Towner, Martin ; Cupak, Martin ; Howie, Robert ; Hartig, Benjamin (2019)
      As fireball networks grow, the number of events observed becomes unfeasible to manage by manual efforts. Reducing and analyzing big data requires automated data pipelines. Triangulation of a fireball trajectory can swiftly ...
    • Analyzing meteoroid flights using particle filters
      Sansom, E.; Rutten, M.; Bland, Phil (2017)
      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 ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.