Today, April 6th, we will have flies past Earth closer than the Moon. The  two asteroids newly-discovered space rocks 2011 GW9 and 2011 GP28 will zip through the Earth-Moon system at Earth-distances of 77,000 km and 192,000 km, respectively. They wont be visible to the naked eye.

Orbital diagram

click to enlarge

click to enlarge

Both are ten-meter class asteroids two to three times smaller than the Tunguska impactor of 1908. There is no danger of a collision.

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