The object was first observed on 21 May 2010 by astronomers Andrzej Udalski, Scott Sheppard, M. Szymanski and Chad Trujillo at the Las Campañas Observatory in Chile.
[1][3] 2010 KZ39 orbits the Sun at a distance of 42.5–47.6 AU once every 302 years, similar to Makemake, Chaos and other bodies that circle the Sun in 6:11 resonance to Neptune.
Its orbit has an eccentricity of 0.056 and an inclination of 26° with respect to the ecliptic.
Using the best-fit values for its orbit, it is expected to come to perihelion in 2109.
[11] The body's spectral type as well as its rotation period remain unknown.