2062 Aten
Orbital diagram of the Aten asteroid (epoch: Sept. 2013)
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| Discovery | |||||||||||||||||
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| Discovered by | Eleanor F. Helin | ||||||||||||||||
| Discovery site | Palomar | ||||||||||||||||
| Discovery date | 7 January 1976 | ||||||||||||||||
| Designations | |||||||||||||||||
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Named after
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Aten | ||||||||||||||||
| 1976 AA | |||||||||||||||||
| Aten asteroid | |||||||||||||||||
| Orbital characteristics | |||||||||||||||||
| Epoch 31 December 2011 (JD 2455926.5) | |||||||||||||||||
| Uncertainty parameter 0 | |||||||||||||||||
| Observation arc | 59.14 yr (21601 days) | ||||||||||||||||
| Aphelion | 1.1434 AU (171.05 Gm) | ||||||||||||||||
| Perihelion | 0.79014 AU (118.203 Gm) | ||||||||||||||||
| 0.96679 AU (144.630 Gm) | |||||||||||||||||
| Eccentricity | 0.18272 | ||||||||||||||||
| 0.95 yr (347.2 d) | |||||||||||||||||
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Average orbital speed
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30.04 km/s | ||||||||||||||||
| 172.27° | |||||||||||||||||
| 1.0368°/day | |||||||||||||||||
| Inclination | 18.934° | ||||||||||||||||
| 108.60° | |||||||||||||||||
| 148.04° | |||||||||||||||||
| Earth MOID | 0.113146 AU (16.9264 Gm) | ||||||||||||||||
| Jupiter MOID | 3.91861 AU (586.216 Gm) | ||||||||||||||||
| Jupiter Tisserand parameter | 6.184 | ||||||||||||||||
| Physical characteristics | |||||||||||||||||
| Dimensions | 1.1 km (0.68 mi) | ||||||||||||||||
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Mean radius
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0.55 km | ||||||||||||||||
| Mass | 7.6×1011kg | ||||||||||||||||
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Mean density
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2 ? g/cm³ | ||||||||||||||||
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Equatorial surface gravity
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0.000 25 m/s² | ||||||||||||||||
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Equatorial escape velocity
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0.000 48 km/s | ||||||||||||||||
| 40.77 h (1.699 d) hr | |||||||||||||||||
| 0.26 | |||||||||||||||||
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| S | |||||||||||||||||
| 16.80 | |||||||||||||||||
2062 Aten (/ˈɑːtən/) is an asteroid that was discovered at the Palomar Mountain Observatory by Eleanor F. Helin, who was the principal scientist for the NEAT (Near-Earth Asteroid Tracking) project until she retired in 2002. It is named after Aten, the Egyptian god of the solar disk.
Aten was the first asteroid found to have a semi-major orbital axis of less than one astronomical unit. A new category of asteroids was thus created, the Atens. As of July 2004 about 16 Atens were numbered and some 212 were provisional, the unnumbered Atens ranged from what was then 1989 VA to 2004 MD6.
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