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Discovery
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|---|---|
| Discovery date | 2004 |
| Epoch August 27, 2011 | |
| Aphelion | 35.7 AU |
| Perihelion | 24.6 AU |
| Semi-major axis | 30.1 AU |
| Eccentricity | 0.184 |
| Orbital period | 165.35 yr (60,396 d) |
| Mean anomaly | 58.6° |
| Inclination | 13.61° |
| Longitude of ascending node | 235.63° |
| Argument of perihelion | 294.58° |
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Physical characteristics
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| Dimensions | ~56 km[2] |
| Absolute magnitude (H) | 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]
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