2062 Aten

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2062 Aten
Discovery A (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)
Discoverer Eleanor F. Helin
Discovery date January 7, 1976
Alternate
designations
1976 AA B (http://cfa-www.harvard.edu/iau/MPDes.html)
Category Aten asteroid
Orbital elements C (http://asteroid.lowell.edu/)
Epoch July 14, 2004 (JD 2453200.5)
Eccentricity (e) 0.183
Semi-major axis (a) 144.617 Gm (0.967 AU)
Perihelion (q) 118.197 Gm (0.790 AU)
Aphelion (Q) 171.038 Gm (1.143 AU)
Orbital period (P) 347.168 d (0.95 a)
Mean orbital speed 30.29 km/s
Inclination (i) 18.932°
Longitude of the
ascending node
(Ω)
108.635°
Argument of
perihelion
(ω)
147.946°
Mean anomaly (M) 225.354°
Physical characteristics
Dimensions 0.9 km
Mass 7.6×1011 kg
Density 2 ? g/cm³
Surface gravity 0.000 25 m/s²
Escape velocity 0.000 48 km/s
Rotation period 1.699 d
Spectral class S
Absolute magnitude 16.80
Albedo 0.2
Mean surface
temperature
~275 K

2062 Aten is an asteroid that was discovered at the Palomar Mountain Observatory by Eleanor F. Helin, who is now the principal scientist for the NEAT (Near-Earth Asteroid Tracking) project. 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, of which 16 are known and numbered, and some 212 awaiting numbering as of July 2004, ranging from 1989 VA to 2004 MD6.

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The minor planets
Vulcanoids | Main belt | Groups and families | Near-Earth objects | Jupiter Trojans
Centaurs | Trans-Neptunians | Damocloids | Comets | Kuiper belt | Oort cloud
(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)
(For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.)
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