2004 KV18
| 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° | |
| 0° 0m 21.299s /day | |
| 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] | |
|
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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, 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 2 "JPL Small-Body Database Browser: 2004 KV18". Retrieved 30 March 2016.
- 1 2 The Tracking News
- ↑ "List Of Neptune Trojans". Minor Planet Center. Archived from the original on 6 March 2012. Retrieved 2011-08-08.
- ↑ 2004 KV18 at JPL Horizons Change "Observer Location" to @Neptune
- 1 2 Guan, Pu; Zhou, Li-Yong; Li, Jian (2012). "Trailing (L5) Neptune Trojans: 2004 KV18 and 2008 LC18". Research in Astronomy and Astrophysics 12 (11): 1549–1562. arXiv:1205.2206. Bibcode:2012RAA....12.1549G. doi:10.1088/1674-4527/12/11/009.
- ↑ 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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