These Trojans have a semi-major axis and an orbital period very similar to Neptune's (30.10 AU; 164.8 years).
[1] 2004 KV18 is not a primordial Neptune trojan, and will leave the region on a relatively short time scale.
[6] Based on a generic magnitude-to-diameter conversion, it measures approximately 71 kilometers in diameter using an absolute magnitude of 8.9 and an assumed albedo of 0.10.
[5] It is one of the smaller bodies among the first 17 Neptune trojans discovered so far, which measure between 60 and 200 kilometers (for an absolute magnitude of 9.3–6.6 and an assumed albedo of 0.10).
[4] Due to its orbital uncertainty, this minor planet has not been numbered and its official discoverers have not been determined.