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Post Info TOPIC: Villalbeto de la Peña Meteorite


L

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Iberian Peninsula fireball
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An impressive fireball much brighter than the Full Moon was observed around 16h46m45s (±10s) UTC on Sunday 4 January, 2004. In spite of appearing in broad daylight it was seen by thousands of people, who were attending diverse festivities in the Northern part of the peninsula. Some of them were able to obtain a record of great scientific value, filming the bolide over well known landmarks in Leon, for example.
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L

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RE: Villalbeto de la Peña Meteorite
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The first Villalbeto de la Peña meteorite specimen was found on January 11, 2004

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L

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Bólido de Villalbeto de la Peña



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L

Posts: 131433
Date:
Iberian fireball of 4 January 2004
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An impressive daylight fireball was observed from Spain, Portugal, and the south of France at 16h46m45s UTC on January 4, 2004. The meteoroid penetrated into the atmosphere, generating shock waves that reached the ground and produced audible booms. The associated airwave was recorded at a seismic station located 90 km north of the fireball trajectory in Spain, and at an infrasound station in France located 750 km north-east of the fireball. The absolute magnitude of the bolide has been determined to be ~18 ± 1 from a casual video record. The energy released in the atmosphere determined from photometric, seismic, and infrasound data was about 0.02 kilotons (kt). A massive fragmentation occurred at a height of 28 ± 0.2 km, resulting in a meteorite strewn field of 20 x 6 km. The first meteorite specimen was found on January 11, 2004, near the village of Villalbeto de la Peña, in northern Palencia (Spain). To date, about 4.6 kg of meteorite mass have been recovered during several recovery campaigns. The meteorite is a moderately shocked (S4) L6 ordinary chondrite with a cosmic-ray-exposure age of 48 ± 5 Ma. Radioisotope analysis shows that the original body had a mass of 760 ± 150 kg, which is in agreement with the estimated mass obtained from photometric and seismic measurements.
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L

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RE: Villalbeto de la Peña Meteorite
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Villalbeto de la Peña
Palencia, Castilla-Leon, Spain
Fell 2004 January 04 16:47 UT
Chondrite (L6)
At about 17:47 P.M. on 2004 January 4, a brilliant fireball of absolute magnitude -18±2 was seen over a large area of Spain. The fireball coursed north-eastward and experienced various explosions along its trajectory. Thundering detonations were heard over a wide area and a long, smoky trail remained visible for nearly 30 minutes. A total mass of ~2.5 kg was recovered. Two specimens (42.03 and 21.76 g) were found by Jose Luis Allende on January 11-12th. From January 23th to February 8th a recovery team collected five specimens (61.78 g, 32.0 g, 126.0 g, 34.7 g and 32.1 g). In addition, a linked second team lead by Javier Garcia-Guinea (Museo Nacional de Ciencias Naturales, Madrid) found seven specimens in the same area (58.91 g, 38.12 g, 5.83 g, 3.87 g, 185.7 g, 66.31 g, and 119.08 g). Three other individuals recovered a further 7 stones (52.8 g, 51.64 g, 50.23 g, 46.48 g, 33.22 g, 18.28 g, and 11.00 g). On March 10th a nearly complete individual of 1367.6 g was discovered. All the specimens exhibit a black fusion crust. 

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L

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The Villalbeto de la Peña (L6) meteorite fell in Castilla y Leon, Spain, on the 4th January 2004.
A total mass of 3.5 kg was recovered.

42° 48'N, 4° 40'W



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