2062 Aten
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Orbital diagram of the Aten asteroid (epoch: Sept. 2013) | |||||||||||||||||
| Discovery | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | Eleanor F. Helin | ||||||||||||||||
| Discovery site | Palomar | ||||||||||||||||
| Discovery date | 7 January 1976 | ||||||||||||||||
| Designations | |||||||||||||||||
Named after | Aten | ||||||||||||||||
| 1976 AA | |||||||||||||||||
| Aten asteroid | |||||||||||||||||
| Orbital characteristics[1] | |||||||||||||||||
| 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) | |||||||||||||||||
Average orbital speed | 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)[1] | ||||||||||||||||
Mean radius | 0.55 km | ||||||||||||||||
| Mass | 7.6×1011 kg | ||||||||||||||||
Mean density | 2 ? g/cm³ | ||||||||||||||||
Equatorial surface gravity | 0.000 25 m/s² | ||||||||||||||||
Equatorial escape velocity | 0.000 48 km/s | ||||||||||||||||
| 40.77 h (1.699 d) hr[1] | |||||||||||||||||
| 0.26[1] | |||||||||||||||||
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| S[1] | |||||||||||||||||
| 16.80[1] | |||||||||||||||||
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2062 Aten (/ˈɑːtən/)[3] 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,[4] the unnumbered Atens ranged from what was then 1989 VA to 2004 MD6.
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 2062 Aten (1976 AA)" (2014-02-14 last obs (arc=58 yr)). Jet Propulsion Laboratory. Retrieved 17 April 2016.
- ↑ "Planetary Habitability Calculators". Planetary Habitability Laboratory. University of Puerto Rico at Arecibo. Retrieved 10 December 2015.
- ↑ Oxford English Dictionary
- ↑ "NEO Discovery Statistics". Retrieved 2014-02-26.
External links
- Benner, et al. - Radar Detection of Near-Earth Asteroids 2062 Aten, 2101 Adonis, 3103 Eger, 4544 Xanthus, and 1992 QN (1997)
- 2062 Aten at the JPL Small-Body Database
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