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Sökning: (WFRF:(Onken C. A.)) > (2021) > The impact and reco...

The impact and recovery of asteroid 2018 LA

Jenniskens, Peter (författare)
SETI Institute, 189 Bernardo Avenue, Mountain View, California 94043, USA; NASA Ames Research Center, Moffett Field, California 94035, USA
Gabadirwe, Mohutsiwa (författare)
Botswana Geoscience Institute, Plot 11566, Khama 1 Avenue, Plot 1734, Lobatse, Botswana
Yin, Qing-Zhu (författare)
Department of Earth and Planetary Sciences, University of California Davis, One Shields Avenue, Davis, California, 95616 USA
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Proyer, Alexander (författare)
Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana
Moses, Oliver (författare)
University of Botswana, Okavango Research Institute, Private Bag 285, Maun, Botswana Search for more papers by this autho
Kohout, Tomas (författare)
Department of Geosciences and Geography, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland; Ursa Finnish Fireball Network, Kopernikuksentie 1, FI-00130 Helsinki, Finland
Franchi, Fulvio (författare)
Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana
Gibson, Roger L. (författare)
School of Geosciences, University of the Witwatersrand, P.O. WITS, Johannesburg, 2050 South Africa
Kowalski, Richard (författare)
Catalina Sky Survey, Lunar & Planetary Laboratory, The University of Arizona, 1629 E University Blvd., Tucson, Arizona, USA
Christensen, Eric J. (författare)
Catalina Sky Survey, Lunar & Planetary Laboratory, The University of Arizona, 1629 E University Blvd., Tucson, Arizona, USA
Gibbs, Alex R. (författare)
Catalina Sky Survey, Lunar & Planetary Laboratory, The University of Arizona, 1629 E University Blvd., Tucson, Arizona, USA
Heinze, Aren (författare)
ATLAS, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, Hawaii, 96822–1839 USA
Denneau, Larry (författare)
ATLAS, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, Hawaii, 96822–1839 USA
Farnocchia, Davide (författare)
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California, 91109 USA
Chodas, Paul W. (författare)
Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California, 91109 USA
Gray, William (författare)
Project Pluto, 168 Ridge Road, Bowdoinham, Maine, 04008 USA
Micheli, Marco (författare)
ESA NEO Coordination Centre, Largo Galileo Galilei 1, I-00044 Frascati, Italy
Moskovitz, Nick (författare)
Lowell Observatory, 1400 W. Mars Hill Rd, Flagstaff, Arizona, 86001 USA
Onken, Christopher A. (författare)
Research School of Astronomy and Astrophysics, The Australian National University, Canberra, Australian Capital Territory, 2611 Australia
Wolf, Christian (författare)
Research School of Astronomy and Astrophysics, The Australian National University, Canberra, Australian Capital Territory, 2611 Australia
Devillepoix, Hadrien A. R. (författare)
School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia, 6845 Australia
Ye, Quanzhi (författare)
Department of Astronomy, University of Maryland, College Park, Maryland, 20742 USA; Division of Physics, Mathematics and Astronomy, Caltech, Pasadena, California, 91125 USA
Robertson, Darrel K. (författare)
NASA Ames Research Center/Bay Area Environmental Research Institute, Mail Stop 245-3, Moffett Field, California, 94035 USA
Brown, Peter (författare)
Centre for Planetary Science and Exploration, Western University, London, Ontario, N6A 5B7 Canada
Lyytinen, Esko (författare)
Ursa Finnish Fireball Network, Kopernikuksentie 1, FI-00130 Helsinki, Finland
Moilanen, Jarmo (författare)
Ursa Finnish Fireball Network, Kopernikuksentie 1, FI-00130 Helsinki, Finland
Albers, Jim (författare)
SETI Institute, 189 Bernardo Avenue, Mountain View, California, 94043 USA
Cooper, Tim (författare)
Astronomical Society of Southern Africa, Suite 617, Private Bag X043, Benoni, 1500 South Africa
Assink, Jelle (författare)
R&D Seismology and Acoustics, Royal Dutch Meteorological Institute, P.O. Box 201, NL-3730 AE De Bilt, the Netherlands
Evers, Läslo (författare)
R&D Seismology and Acoustics, Royal Dutch Meteorological Institute, P.O. Box 201, NL-3730 AE De Bilt, the Netherlands; Department of Geoscience and Engineering, Delft University of Technology, P.O. Box 5048, NL-2600 GA Delft, the Netherlands
Lahtinen, Panu (författare)
Ursa Finnish Fireball Network, Kopernikuksentie 1, FI-00130 Helsinki, Finland
Seitshiro, Lesedi (författare)
Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana
Laubenstein, Matthias (författare)
Gran Sasso National Laboratory, National Institute for Nuclear Physics, Via G. Acitelli 22, I-67100 Assergi, Italy
Wantlo, Nggie (författare)
Botswana Geoscience Institute, Plot 11566, Khama 1 Avenue, Plot 1734, Lobatse, Botswana
Moleje, Phemo (författare)
Botswana Geoscience Institute, Plot 11566, Khama 1 Avenue, Plot 1734, Lobatse, Botswana
Maritinkole, Joseph (författare)
Botswana Geoscience Institute, Plot 11566, Khama 1 Avenue, Plot 1734, Lobatse, Botswana
Suhonen, Heikki (författare)
Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
Zolensky, Michael E. (författare)
ARES Division, NASA Johnson Space Flight Center, Houston, Texas, 77058 USA
Ashwal, Lewis (författare)
School of Geosciences, University of the Witwatersrand, P.O. WITS, Johannesburg, 2050 South Africa
Hiroi, Takahiro (författare)
Reflectance Experiment Laboratory, Department of Earth, Environmental and Planetary Science, Brown University, Providence, Rhode Island, 02912 USA
Sears, Derek W. (författare)
NASA Ames Research Center/Bay Area Environmental Research Institute, Mail Stop 245-3, Moffett Field, California, 94035 USA
Sehlke, Alexander (författare)
NASA Ames Research Center/Bay Area Environmental Research Institute, Mail Stop 245-3, Moffett Field, California, 94035 USA
Maturilli, Alessandro (författare)
Institute for Planetary Research, German Aerospace Center DLR, Rutherfordstrasse 2, D-12489 Berlin-Adlershof, Germany
Sanborn, Matthew E. (författare)
Department of Earth and Planetary Sciences, University of California Davis, One Shields Avenue, Davis, California, 95616 USA
Huyskens, Magdalena H. (författare)
Department of Earth and Planetary Sciences, University of California Davis, One Shields Avenue, Davis, California, 95616 USA
Dey, Supratim (författare)
Department of Earth and Planetary Sciences, University of California Davis, One Shields Avenue, Davis, California, 95616 USA
Ziegler, Karen (författare)
Institute of Meteoritics, University of New Mexico, 221 Yale Blvd NE, 331 Northrop Hall, Albuquerque, New Mexico, 87131 USA
Busemann, Henner (författare)
Institute of Geochemistry and Petrology, ETH Zürich, Clausiusstrasse 25, CH-8092 Zürich, Switzerland
Riebe, My E. I. (författare)
Institute of Geochemistry and Petrology, ETH Zürich, Clausiusstrasse 25, CH-8092 Zürich, Switzerland
Meier, Matthias M. M. (författare)
Naturmuseum St. Gallen, Rorschacher Strasse 263, CH-9016 St. Gallen, Switzerland
Welten, Kees C. (författare)
Space Science Laboratory, University of California Berkeley, Berkeley, California, 94720 USA
Caffee, Marc W. (författare)
Department of Physics and Astronomy, Purdue University, 525 Northwestern Avenue, West Lafayette, Indiana, 47907 USA
Zhou, Qin (författare)
National Astronomical Observatories, Beijing, Chinese Academy of Sciences, Beijing, 100012 China
Li, Qiu-Li (författare)
National Astronomical Observatories, Beijing, Chinese Academy of Sciences, Beijing, 100012 China
Li, Xian-Hua (författare)
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029 China
Liu, Yu (författare)
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029 China
Tang, Guo-Qiang (författare)
State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029 China
McLain, Hannah L. (författare)
Department of Chemistry, Catholic University of America, 620 Michigan Ave, N.E., Washington, D.C., 20064 USA; NASA Goddard Space Flight Center, 8800 Greenbelt Rd., Greenbelt, Maryland, 20771 USA
Dworkin, Jason P. (författare)
NASA Goddard Space Flight Center, 8800 Greenbelt Rd., Greenbelt, Maryland, 20771 USA
Glavin, Daniel P. (författare)
NASA Goddard Space Flight Center, 8800 Greenbelt Rd., Greenbelt, Maryland, 20771 USA
Schmitt-Kopplin, Philippe (författare)
Helmholtz Zentrum München, Research Unit Analytical BioGeoChemistry, Ingolstädter Landstr. 1, D-85764 Neuherberg, Germany; Analytical Food Chemistry, Technische Universität München, D-85354 Freising-Weihenstephan, Germany
Sabbah, Hassan (författare)
IRAP, Université de Toulouse, CNRS, CNES, Université de Toulouse (UPS), F-31028 Toulouse Cedex 4, France
Joblin, Christine (författare)
IRAP, Université de Toulouse, CNRS, CNES, Université de Toulouse (UPS), F-31028 Toulouse Cedex 4, France
Granvik, Mikael (författare)
Luleå tekniska universitet,Rymdteknik,Department of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
Mosarwa, Babutsi (författare)
Botswana National Museum, 161 Queens Rd, Gaborone, Botswana
Botepe, Koketso (författare)
Botswana Geoscience Institute, Plot 11566, Khama 1 Avenue, Plot 1734, Lobatse, Botswana
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 (creator_code:org_t)
2021-04-23
2021
Engelska.
Ingår i: Meteoritics and Planetary Science. - : John Wiley & Sons. - 1086-9379 .- 1945-5100. ; 56:4, s. 844-893
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • The June 2, 2018 impact of asteroid 2018 LA over Botswana is only the second asteroid detected in space prior to impacting over land. Here, we report on the successful recovery of meteorites. Additional astrometric data refine the approach orbit and define the spin period and shape of the asteroid. Video observations of the fireball constrain the asteroid's position in its orbit and were used to triangulate the location of the fireball's main flare over the Central Kalahari Game Reserve. Twenty‐three meteorites were recovered. A consortium study of eight of these classifies Motopi Pan as an HED polymict breccia derived from howardite, cumulate and basaltic eucrite, and diogenite lithologies. Before impact, 2018 LA was a solid rock of ~156 cm diameter with high bulk density ~2.85 g cm−3, a relatively low albedo pV ~ 0.25, no significant opposition effect on the asteroid brightness, and an impact kinetic energy of ~0.2 kt. The orbit of 2018 LA is consistent with an origin at Vesta (or its Vestoids) and delivery into an Earth‐impacting orbit via the ν6 resonance. The impact that ejected 2018 LA in an orbit toward Earth occurred 22.8 ± 3.8 Ma ago. Zircons record a concordant U‐Pb age of 4563 ± 11 Ma and a consistent 207Pb/206Pb age of 4563 ± 6 Ma. A much younger Pb‐Pb phosphate resetting age of 4234 ± 41 Ma was found. From this impact chronology, we discuss what is the possible source crater of Motopi Pan and the age of Vesta's Veneneia impact basin.

Ämnesord

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

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Onboard Space Systems
Rymdtekniska system

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