ARLA/CLUSTER: 2 Asteróides passam hoje pela terra a distâncias semelhantes à da Lua

[Pedro Ribeiro (CR7ABP)]

Será um bom dia para "meteor scatter" com os fragmentos pequenos que 
sejam atraídos para a nossa bolinha azul não?

73!

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  Notícia Original
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PASADENA, Calif. – Two asteroids, several meters in diameter and in 
unrelated orbits, will pass within the moon's distance of Earth on 
Wednesday, Sept. 8.

Both asteroids should be observable near closest approach to Earth with 
moderate-sized amateur telescopes. Neither of these objects has a chance 
of hitting Earth. A 10-meter-sized near-Earth asteroid from the 
undiscovered population of about 50 million would be expected to pass 
almost daily within a lunar distance, and one might strike Earth's 
atmosphere about every 10 years on average.

The Catalina Sky Survey near Tucson, Ariz., discovered both objects on 
the morning of Sunday, Sept. 5, during a routine monitoring of the 
skies. The Minor Planet Center in Cambridge, Mass., first received the 
observations Sunday morning, determined preliminary orbits and concluded 
that both objects would pass within the distance of the moon about three 
days after their discovery.

Near-Earth asteroid 2010 RX30 is estimated to be 32 to 65 feet (10 to 20 
meters) in size and will pass within 0.6 lunar distances of Earth (about 
154,000 miles, or 248,000 kilometers) at 2:51 a.m. PDT (5:51 a.m. EDT) 
Wednesday. The second object, 2010 RF12, estimated to be 20 to 46 feet 
(6 to 14 meters) in size, will pass within 0.2 lunar distances (about 
49,088 miles or 79,000 kilometers) a few hours later at 2:12 p.m. PDT 
(5:12 pm EDT).

Em: http://www.jpl.nasa.gov/asteroidwatch/newsfeatures.cfm?release=2725

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Pedro Ribeiro
Indicativo: CR7ABP
QTH: São Francisco, Alcochete
GRID LOC: IM58MR
** Limitado a RX em Classe3 até 31/03/2012 **
( Decreto-Lei 53/2009, Art 8, 2a e Art 5, 3a )
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