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metadata.dc.type: | Artigo de Periódico |
Título : | A bright fireball over the coast of the state of Bahia |
Autor : | Zurita, Marcelo Damiglê, Rubens Di Pietro, Carlos Bella Trindade, Lauriston Silva, Gabriel Gonçalves Lima, Andrei Roger Mota, Alexsandro Arthur, Romualdo Betzler, Alberto Silva |
metadata.dc.creator: | Zurita, Marcelo Damiglê, Rubens Di Pietro, Carlos Bella Trindade, Lauriston Silva, Gabriel Gonçalves Lima, Andrei Roger Mota, Alexsandro Arthur, Romualdo Betzler, Alberto Silva |
Resumen : | In February, 21st, 2018, around 01:27 (UT), inhabitants from the oceanfront cities of the states of Bahia, Sergipe and Alagoas observed a very bright fireball. Using four videos obtained with security cameras installed in metropolitan region of Salvador (Bahia) and in a car near Aracaju (Sergipe), it was possible determined the fireball trajectory. With a velocity of 15.94 km/s, the fireball exploded at 21 km of altitude, about 134 km ESE from the coast of the city of Salvador. The energy released was estimated in 8.5 × 10^{−3} kt of TNT, corresponding to a pre-atmospheric mass between 700 kg and 1100 kg. The meteoroid diameter was estimated between 0.7 m and 0.85 m. Applying the D-criterion in the estimate heliocentric orbit, we suggested that it was a sporadic meteor |
Palabras clave : | meteor astrometry |
metadata.dc.publisher.country: | Brasil |
Editorial : | Sociedade Astronômica Brasileira |
Citación : | ZURITA, Marcelo et al. A bright fireball over the coast of the state of Bahia. Boletim da Sociedade Astronômica Brasileira, São Paulo, v. 31, n. 1, p. 14-16, 2019. |
metadata.dc.rights: | Acesso Aberto |
URI : | http://repositorio.ufba.br/ri/handle/ri/28859 |
Fecha de publicación : | 2019 |
Aparece en las colecciones: | Trabalho Apresentado em Evento (FIS) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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BSAB31_artigo_grande_meteoro_da_bahia (pdf.io).pdf | 775,47 kB | Adobe PDF | Visualizar/Abrir |
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