Discovery date 9 December 2001 Minor planet category SDO3:7 resonance | MPC designation (131696) 2001 XT254 Observation arc 4113 days (11.26 yr) | |
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Discovered by Sheppard, S. S., Kleyna, J., Jewitt, D. C. Aphelion 70.889 AU (10.6048 Tm) (Q) | ||
(131696) 2001 XT254, provisionally known as 2001 XT254, is a Kuiper belt object (KBO) that has a 3:7 resonance with Neptune.
It will come to perihelion in January 2016.
Assuming a generic TNO albedo of 0.09, it is about 146 km in diameter.
Resonance
Simulations by Emel’yanenko and Kiseleva in 2007 show that (131696) 2001 XT254 is librating in a 3:7 resonance with Neptune. This libration can be stable for less than 100 million to billions of years.
It has been observed 22 times over 4 oppositions.
References
(131696) 2001 XT254 Wikipedia(Text) CC BY-SA