(153591) 2001 SN263

The correct title of this article is (153591) 2001 SN₂₆₃. It features superscript or subscript characters that are substituted or omitted because of technical limitations.

(153591) 2001 SN₂₆₃ (also written (153591) 2001 SN263) is a small near-Earth asteroid discovered by the LINEAR project in 2001. In 2008, scientists at the Arecibo Observatory discovered that the object is orbited by two moons, and with a distance of 11.2 million km at closest approach is the closest triple asteroid system to the Earth. The three bodies are close in size: 2001 SN₂₆₃ itself is 2 km in diameter, while its companions are 1 km and 0.4 km in diameter.

External links

NASA JPL Small-Body Database Browser on 2001 SN263
Robert Roy Britt, Triple Asteroid Found Near Earth, Space.com, 13 Feb 2008
Emily Lakdawalla, Triple Near-Earth Asteroid Discovered The Planetary Society, 13 Feb 2008
Images of the asteroid and its moons

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(153591) 2001 SN263

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