2004 KV18
From Infogalactic: the planetary knowledge core
| Discovery | |
|---|---|
| Discovery date | 2004 |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 708 days (1.94 yr) |
| Aphelion | 35.961 AU (5.3797 Tm) |
| Perihelion | 24.591 AU (3.6788 Tm) |
| 30.276 AU (4.5292 Tm) | |
| Eccentricity | 0.18777 |
| 166.60 yr (60849.0 d) | |
| 66.828° | |
| Inclination | 13.574° |
| 235.57° | |
| 295.54° | |
| Earth MOID | 23.6207 AU (3.53361 Tm) |
| Jupiter MOID | 19.3377 AU (2.89288 Tm) |
| Physical characteristics | |
| Dimensions | ~56 km[2] |
| 8.9[1] | |
2004 KV18 is the eighth Neptune trojan identified and the second in Neptune's L5 Lagrangian point (trailing Neptune).[3] It is suspected to be around 56 km in mean diameter.[2] As of 2016[update], it is 38 AU from Neptune. By 2097, it will be 55 AU from Neptune.[4]
2004 KV18 is not a primordial Neptune trojan, and will leave the region on a relatively short time scale. The orbit of a Neptune trojan can only be stable when the eccentricity is less than 0.12.[5][6] Its lifetime as a trailing Neptune trojan is on the order of 100000 years into the future.[5]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 The Tracking News
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2004 KV18 at JPL Horizons Change "Observer Location" to @Neptune
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ The dynamics of Neptune Trojan – I. The inclined orbits (figure 5)
External links
- 2004 KV18 at the JPL Small-Body Database
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