(153591) 2001 SN 263
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Asteroid (153591) 2001 SN 263 |
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| Properties of the orbit ( animation ) | |
| Orbit type | Near-Earth asteroid, Cupid-type |
| Major semi-axis | 1,987 AU |
| eccentricity | 0.478 |
| Perihelion - aphelion | 1.037 AU - 2.937 AU |
| Inclination of the orbit plane | 6.684 ° |
| Sidereal period | 2.80 a |
| Physical Properties | |
| Medium diameter | 2 + 1 + 0.4 km |
| Absolute brightness | 16.9 ± 0.5 mag |
| history | |
| Explorer | LINEAR |
| Date of discovery | September 20, 2001 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(153591) 2001 SN 263 is a small near-Earth asteroid that was discovered by the LINEAR project in 2001. In 2008, scientists at the Arecibo Observatory found that the object is orbited by two moons. At a distance of 11.2 million kilometers from Earth, it is the closest three-object asteroid system to Earth. The three bodies are similar in size, (153591) 2001 SN 263 has a diameter of 2 km, while the two moons have diameters of 1 km and 0.4 km.
Web links
- (153591) 2001 SN263 in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Robert Roy Britt: Triple Asteroid Found Near Earth , Space.com , February 13, 2008
- Emily Lakdawalla: Triple Near-Earth Asteroid Discovered The Planetary Society , February 13, 2008
- Images of the asteroid and its moons