| dc.contributor.author | Andrade, Manuel | ca |
| dc.contributor.author | Ibáñez-Insa, Jordi | ca |
| dc.contributor.author | Campeny, Marc | ca |
| dc.contributor.other | Consorci del Museu de Ciències Naturals de Barcelona | ca |
| dc.coverage.spatial | Galícia | ca |
| dc.coverage.spatial | Espanya | ca |
| dc.date.accessioned | 2025-11-05T13:06:08Z | |
| dc.date.available | 2025-11-05T13:06:08Z | |
| dc.date.issued | 2022-10-17 | |
| dc.description | The Traspena meteorite fell on 2021 January 18 about 20 km south-east of the city of Lugo (Galiza, Spain), shortly after a huge
and bright fireball crossed the sky for 4.84 s. Astrometric measurements obtained from the fireball cameras of the Universidade
de Santiago de Compostela (USC) as well as from many casual videos were used to determine the atmospheric trajectory of this
meteoroid which penetrated the atmosphere and generated sound waves that were detected at three seismic stations. The original
meteoroid had a diameter of about 1.15 m and a mass around 2620 kg. It impacted the Earth’s atmosphere with a steep entry angle
of about 76.
◦7 from a height of 75.10 km until fading away at 15.75 km with a velocity of 2.38 km s−1. Before the impact, thissmall
asteroid was orbiting the Sun with a semimajor axis of 1.125 au, a moderate eccentricity of 0.386, and a low inclination of 4.
◦55.
A weak evidence of dynamic link with the PHA (Potential Hazardous Asteroid) Minos was investigated. During the atmospheric
entry, two major fragmentation events occurred between heights of 35 and 29 km at aerodynamic pressures between 1 and 5 MPa.
The strewn field was computed after calculating the individual dark flights ofthe main body along with two smallerfragments. Fortunately, 2 month after the superbolide, a 527-g meteorite wasfound. It was examined using several geochemical and petrographic
analyses which allowed us to classify it as a moderately shocked (S3) L5 ordinary chondrite with a bulk density of 3.25 g cm−3. | |
| dc.format | application/pdf | ca |
| dc.format.extent | 27 p. | ca |
| dc.identifier | http://hdl.handle.net/2072/529747 | |
| dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, Vol. 518, Issue 3 (Jan. 2023), p. 3850-3876 | ca |
| dc.identifier.entitat | consorcis | ca |
| dc.identifier.uri | http://hdl.handle.net/11703/128954 | |
| dc.language | eng | ca |
| dc.provenance | Recercat (Dipòsit de la Recerca de Catalunya) | ca |
| dc.rights | L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by/4.0/ | |
| dc.rights | © 2022 The Author(s) | |
| dc.rights.accessrights | info:eu-repo/semantics/openAccess | ca |
| dc.subject | Meteorits | ca |
| dc.subject | Astrometria | ca |
| dc.subject.category | Ciència i tecnologia | ca |
| dc.subject.forma | articles | ca |
| dc.title | The Traspena meteorite: heliocentric orbit, atmospheric trajectory, strewn field, and petrography of a new L5 ordinary chondrite | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type.driver | info:eu-repo/semantics/article | ca |
| metadadalocal.dependencia | 8008920 | |