2008 TC3

2008 TC3
Número 2008 TC3
Data da descoberta 06 de outubro de 2008
Descoberto por Catalina Sky Survey
Categoria Asteroide Apollo
Elementos orbitais
Semieixo maior 1,308 UA
Periélio 1,716 UA
Afélio 0,9 UA
Orbita Sol
Excentricidade 0,31206744043697
Período orbital 546,5 dias
Anomalia média 330,8 °
Inclinação 2,542 °
Longitude do nó ascendente 194,1 °
Argumento do periastro 234,4 °
Características físicas
Período de rotação 0,02694 h
Magnitude absoluta 30,72
ver

O 2008 TC3 foi um asteroide de 2 a 5 m de diâmetro descoberto em 6 de Outubro de 2008 por Richard A. Kowalski do Catalina Sky Survey,[1] utilizando um telescópio automatizado.

Fragmentos do asteroide 2008 TC3 encontrado no deserto da Núbia, Sudão.

Satélites e observadores em terra acompanharam a trajetória do asteroide, que atravessou o ar como uma bola de fogo até que explodiu a 37 km de altitude no dia 7 de Outubro de 2008 as 02h46 UTC (5h46 hora local).[2][3] O que restasse dele estaria espalhado pelo deserto da Núbia, localizado entre o Egito e o Sudão.

Uma expedição internacional liderada por cientistas americanos e com participação de pesquisadores sudaneses foi conduzida no deserto em busca dos pedaços do asteroide. Foram encontrados 47 meteoritos (pedaços do asteroide original), totalizando uma massa total de quase 4 quilos.

Pela primeira vez um asteroide foi detectado no espaço e acompanhado até sua colisão com a Terra, com a subsequente recuperação de pedaços que indicam minuciosamente sua composição.

Referências

  1. ↑ Plait, Phil (6 de outubro de 2008). «Incoming!!!» (em inglês). Bad Astronomy. Consultado em 8 de outubro de 2008 
  2. ↑ P. Jenniskens et. al. (26 de março de 2009). «The impact and recovery of asteroid 2008 TC3». Nature (em inglês) (458): 485-488. doi:10.1038/nature07920  Published in Letters to Nature
  3. ↑ «NASA Team Finds Riches in Meteorite Treasure Hunt» (em inglês). NASA. 27 de março de 2009. Consultado em 5 de abril de 2009 

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