(181902) 1999 RD215 is a trans-Neptunian object of the scattered disc, approximately 148 kilometers in diameter.
It was discovered on 6 September 1999, by American astronomers Chad Trujillo, Jane Luu, and David Jewitt at the Mauna Kea Observatories, Hawaii.
[2][3] 1999 RD215 orbits from the center of the Kuiper belt to well beyond into the scattered disc.
Its orbit has an eccentricity of 0.69 and an inclination of 26° with respect to the ecliptic.
[2] According to the Johnston's Archive and Michael Brown, 1999 RD215 measures 147 and 148 kilometers in diameter, and its surface has an estimated albedo of 0.09 and 0.08, respectively.