Trajectory, recovery, and orbital history of the Madura Cave meteorite
On June 19, 2020 at 20:05:07 UTC, a fireball lasting (Formula presented.) was observed above Western Australia by three Desert Fireball Network observatories. The meteoroid entered the atmosphere with a speed of (Formula presented.) km (Formula presented.) and followed a (Formula presented.) ° slope...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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WILEY
2022
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/maps.13820 http://hdl.handle.net/20.500.11937/91791 |
| _version_ | 1848765593361055744 |
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| author | Devillepoix, Hadrien Sansom, Ellie Shober, P. Anderson, S.L. Towner, Martin Lagain, Anthony Cupak, Martin Bland, Phil Howie, Robert Jansen-Sturgeon, T. Hartig, B.A.D. Sokolowski, Marcin Benedix, Gretchen Forman, Lucy |
| author_facet | Devillepoix, Hadrien Sansom, Ellie Shober, P. Anderson, S.L. Towner, Martin Lagain, Anthony Cupak, Martin Bland, Phil Howie, Robert Jansen-Sturgeon, T. Hartig, B.A.D. Sokolowski, Marcin Benedix, Gretchen Forman, Lucy |
| author_sort | Devillepoix, Hadrien |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | On June 19, 2020 at 20:05:07 UTC, a fireball lasting (Formula presented.) was observed above Western Australia by three Desert Fireball Network observatories. The meteoroid entered the atmosphere with a speed of (Formula presented.) km (Formula presented.) and followed a (Formula presented.) ° slope trajectory from a height of 75 km down to 18.6 km. Despite the poor angle of triangulated planes between observatories (29°) and the large distance from the observatories, a well-constrained kilo-size main mass was predicted to have fallen just south of Madura in Western Australia. However, the search area was predicted to be large due to the trajectory uncertainties. Fortunately, the rock was rapidly recovered along the access track during a reconnaissance trip. The 1.072 kg meteorite called Madura Cave was classified as an L5 ordinary chondrite. The calculated orbit is of Aten type (mostly contained within the Earth’s orbit), only the second time a meteorite was observed on such an orbit, after Bunburra Rockhole. Dynamical modeling shows that Madura Cave has been in near-Earth space for a very long time. The dynamical lifetime in near-Earth space for the progenitor meteoroid is predicted to be ~87 Myr. This peculiar orbit also points to a delivery from the main asteroid belt via the (Formula presented.) resonance, and therefore an origin in the inner belt. This result contributes to drawing a picture for the existence of a present-day L chondrite parent body in the inner belt. |
| first_indexed | 2025-11-14T11:37:43Z |
| format | Journal Article |
| id | curtin-20.500.11937-91791 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:43Z |
| publishDate | 2022 |
| publisher | WILEY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-917912023-06-06T04:45:55Z Trajectory, recovery, and orbital history of the Madura Cave meteorite Devillepoix, Hadrien Sansom, Ellie Shober, P. Anderson, S.L. Towner, Martin Lagain, Anthony Cupak, Martin Bland, Phil Howie, Robert Jansen-Sturgeon, T. Hartig, B.A.D. Sokolowski, Marcin Benedix, Gretchen Forman, Lucy Science & Technology Physical Sciences Geochemistry & Geophysics MASS FALL astro-ph.EP astro-ph.EP physics.geo-ph On June 19, 2020 at 20:05:07 UTC, a fireball lasting (Formula presented.) was observed above Western Australia by three Desert Fireball Network observatories. The meteoroid entered the atmosphere with a speed of (Formula presented.) km (Formula presented.) and followed a (Formula presented.) ° slope trajectory from a height of 75 km down to 18.6 km. Despite the poor angle of triangulated planes between observatories (29°) and the large distance from the observatories, a well-constrained kilo-size main mass was predicted to have fallen just south of Madura in Western Australia. However, the search area was predicted to be large due to the trajectory uncertainties. Fortunately, the rock was rapidly recovered along the access track during a reconnaissance trip. The 1.072 kg meteorite called Madura Cave was classified as an L5 ordinary chondrite. The calculated orbit is of Aten type (mostly contained within the Earth’s orbit), only the second time a meteorite was observed on such an orbit, after Bunburra Rockhole. Dynamical modeling shows that Madura Cave has been in near-Earth space for a very long time. The dynamical lifetime in near-Earth space for the progenitor meteoroid is predicted to be ~87 Myr. This peculiar orbit also points to a delivery from the main asteroid belt via the (Formula presented.) resonance, and therefore an origin in the inner belt. This result contributes to drawing a picture for the existence of a present-day L chondrite parent body in the inner belt. 2022 Journal Article http://hdl.handle.net/20.500.11937/91791 10.1111/maps.13820 English http://dx.doi.org/10.1111/maps.13820 http://purl.org/au-research/grants/arc/DP170102529 http://purl.org/au-research/grants/arc/DP200102073 http://creativecommons.org/licenses/by-nc/4.0/ WILEY fulltext |
| spellingShingle | Science & Technology Physical Sciences Geochemistry & Geophysics MASS FALL astro-ph.EP astro-ph.EP physics.geo-ph Devillepoix, Hadrien Sansom, Ellie Shober, P. Anderson, S.L. Towner, Martin Lagain, Anthony Cupak, Martin Bland, Phil Howie, Robert Jansen-Sturgeon, T. Hartig, B.A.D. Sokolowski, Marcin Benedix, Gretchen Forman, Lucy Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title | Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title_full | Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title_fullStr | Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title_full_unstemmed | Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title_short | Trajectory, recovery, and orbital history of the Madura Cave meteorite |
| title_sort | trajectory, recovery, and orbital history of the madura cave meteorite |
| topic | Science & Technology Physical Sciences Geochemistry & Geophysics MASS FALL astro-ph.EP astro-ph.EP physics.geo-ph |
| url | http://dx.doi.org/10.1111/maps.13820 http://dx.doi.org/10.1111/maps.13820 http://dx.doi.org/10.1111/maps.13820 http://hdl.handle.net/20.500.11937/91791 |