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 |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Repositório Institucional da UFBA Universidade Federal da Bahia (UFBA) instacron:UFBA |
| Popis: | Submitted by Alberto Silva Betzler (a_betzler@yahoo.com) on 2019-03-01T14:47:54Z No. of bitstreams: 1 BSAB31_artigo_grande_meteoro_da_bahia (pdf.io).pdf: 794079 bytes, checksum: 01fcfe1bb13863f202a9900f468006e3 (MD5) Approved for entry into archive by Adriana Magalhaes (adriana.magalhaes@ufba.br) on 2019-03-15T13:15:19Z (GMT) No. of bitstreams: 1 BSAB31_artigo_grande_meteoro_da_bahia (pdf.io).pdf: 794079 bytes, checksum: 01fcfe1bb13863f202a9900f468006e3 (MD5) Made available in DSpace on 2019-03-15T13:15:19Z (GMT). No. of bitstreams: 1 BSAB31_artigo_grande_meteoro_da_bahia (pdf.io).pdf: 794079 bytes, checksum: 01fcfe1bb13863f202a9900f468006e3 (MD5) Previous issue date: 2019 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 São Paulo |
| Databáze: | OpenAIRE |
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