(668643) 2012 DR₃₀ is a trans-Neptunian object and centaur with an extremely eccentric orbit that brings it from the inner Oort cloud, the outermost region of the Solar System. It was discovered on 6 February 2008 by astronomers at Purple Mountain Observatory in Nanking, China. It measures approximately 188 kilometers (120 miles) in diameter.

Using an epoch of February 2017, it has the second-largest heliocentric semi-major axis of a minor planet not detected outgassing like a comet. (2014 FE72 has a larger heliocentric semi-major axis.) 2012 DR₃₀ does have a barycentric semi-major axis of 1032 AU. For the epoch of July 2018 2012 DR₃₀ will have its largest heliocentric semi-major axis of 1644 AU.

2012 DR₃₀ passed 5.7 AU from Saturn in February 2009 and came to perihelion in March 2011 at a distance of 14.5 AU from the Sun (inside the orbit of Uranus). In 2018, it will move from 18.2 AU to 19.1 AU from the Sun. It comes to opposition in late March. With an absolute magnitude (H) of 7.1, the object has a published diameter of 185 and 188 kilometers, respectively.

With an observation arc of 14.7 years, it has a well constrained orbit. It will not be 50 AU from the Sun until 2047. After leaving the planetary region of the Solar System, 2012 DR₃₀ will have a barycentric aphelion of 2049 AU with an orbital period of 33100 years. In a 10 million year integration of the orbit, the nominal (best-fit) orbit and both 3-sigma clones remain outside 12.2 AU (q_min) from the Sun. Summary of barycentric orbital parameters are:

Archived data from the JPL SBDB and MPC.