(131696) 2001 XT254

(131696) 2001 XT254, provisionally known as 2001 XT254, is a Kuiper belt object (KBO)[2] that has a 3:7 resonance with Neptune.

[1] Assuming a generic TNO albedo of 0.09, it is about 146 km in diameter.

[5] Simulations by Emel’yanenko and Kiseleva in 2007 show that (131696) 2001 XT254 is librating in a 3:7 resonance with Neptune.

[6] This libration can be stable for less than 100 million to billions of years.

[1] (95625) 2002 GX32 has a similar resonant behavior.

The trefoil libration of 2001 XT 254 . Jupiter in red, Saturn in yellow, and Uranus in blue. Neptune is the white dot at 5 o'clock.
The orbital period of 2001 XT 254 around the 3:7 (2.333..) resonance of Neptune.