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Radar Observations of Elongated Near-Earth Asteroid 2011 AG5

Feb. 17, 2023
This collage represents NASA radar observations of near-Earth asteroid 2011 AG5 on Feb. 4, 2023, one day after its close approach to Earth brought it about 1.1 million miles (1.8 million kilometers) from our planet.

This collage represents NASA radar observations of near-Earth asteroid 2011 AG5 on Feb. 4, 2023, one day after its close approach to Earth brought it about 1.1 million miles (1.8 million kilometers, or a little under five times the distance between the Moon and Earth) from our planet. While there was no risk of 2011 AG5 impacting Earth, scientists at NASA's Jet Propulsion Laboratory in Southern California closely tracked the asteroid, making invaluable observations to help determine its size, rotation, surface details, and shape. More than three times as long as it is wide, 2011 AG5 is one of the most elongated asteroids to be observed by planetary radar to date.

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  • Deep Space Network
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NASA/JPL-Caltech

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