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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/28859

Title: A bright fireball over the coast of the state of Bahia
Authors: Zurita, Marcelo
Damiglê, Rubens
Di Pietro, Carlos Bella
Trindade, Lauriston
Silva, Gabriel Gonçalves
Lima, Andrei Roger
Mota, Alexsandro
Arthur, Romualdo
Betzler, Alberto Silva
Keywords: meteor;astrometry
Issue Date: 2019
Publisher: Sociedade Astronômica Brasileira
Citation: 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.
Abstract: 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
URI: http://repositorio.ufba.br/ri/handle/ri/28859
ISSN: 0101-3440
Appears in Collections:Trabalhos Apresentados em Eventos (FIS)

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