(137108) 1999 AN10
| Discovery | |
|---|---|
| Discovered by | LINEAR |
| Discovery date | 7 January 1999 |
| Designations | |
| MPC designation | (137108) 1999 AN10 |
| Apollo asteroid | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 21222 days (58.10 yr) |
| Aphelion | 2.2787 AU (340.89 Gm) (Q) |
| Perihelion | 0.63875 AU (95.556 Gm) (q) |
| 1.4587 AU (218.22 Gm) (a) | |
| Eccentricity | 0.56212 (e) |
| 1.76 yr (643.51 d) | |
| 186.69° (M) | |
| Inclination | 39.932° (i) |
| 314.41° (Ω) | |
| 268.30° (ω) | |
| Earth MOID | 0.000708904 AU (106,050.5 km) |
| Jupiter MOID | 3.5285 AU (527.86 Gm) |
| Physical characteristics | |
| Dimensions | 800 - 1800 m[2][3] |
| Mass | ~2.9×1012 kg[4] |
|
Equatorial escape velocity
|
~2.8 km/h[4] |
| 17.9[1] | |
(137108) 1999 AN10 is an Apollo near-Earth asteroid (NEA) discovered by LINEAR on January 13, 1999.[5]
On August 7, 2027, this NEA will pass within 0.0026 AU (390,000 km; 240,000 mi) (~1 lunar distance) of the Earth.[6][7][8][9] During the close approach, the asteroid should peak at about apparent magnitude 7.3,[10] and will be visible in binoculars.
1999 AN10 has a well determined orbit with an observation arc of 58 years.[1] It was found by Andreas Doppler and Arno Gnädig in precovery images from 1955.[1] When 1999 AN10 only had an observation arc of 123 days, there was a 1 in 10 million chance that it could return on an impact trajectory in 2039.[11]
On August 7, 1946, the asteroid passed 0.00625 AU (935,000 km; 581,000 mi) from Earth and then 0.00404 AU (604,000 km; 376,000 mi) from the Moon.[7]
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Absolute magnitude to diameter conversion table
- ↑ 4.0 4.1 assume radius of 0.650 km; volume of a sphere * assume density of 2.6g/cm³ (though it could be a loose rubble pile) yields a mass of 2.99e12 kg and an escape velocity of 2.82 km/h.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- (137108) 1999 AN10 at the JPL Small-Body Database
