 It has a perihelion (closest approach to the Sun) of 41.339 AU and an aphelion (farthest approach to the Sun) of 45.889 AU.It has a diameter of about 139 km.It was discovered on April 28, 1998, by Jane X. Luu, Chadwick A. Trujillo, David J. Tholen and David C. Jewitt.