11 December 2001
Minor planet category
(131697) 2001 XH255
4110 days (11.25 yr)
Kleyna, J., Sheppard, S. S., Jewitt, D. C.
37.907 AU (5.6708 Tm) (Q)
It will come to perihelion in 2041.
Assuming a generic TNO albedo of 0.09, it is about 100 km in diameter.
According to the Deep Ecliptic Survey and Minor Planet Center, (131697) 2001 XH255 has a 4:5 resonance with Neptune. It comes as close as 32.2 AU from the Sun and has a fairly low orbital eccentricity of 0.07 with an inclination of only 2.86 degrees.
The Neptune 4:5 resonance keeps it more than 7 AU from Neptune over a 14000-year period.
It has been observed 21 times over 5 oppositions and has an orbit quality code of 3.