| Minorplanet: | yes |
| Background: |
|
| Discovered: | 10 December 2001 |
| Epoch: | 27 April 2019 (JD 2458600.5) |
| Uncertainty: | 43 |
| Observation Arc: | 14.26 yr (5,207 d) |
| Perihelion: | 41.178 AU |
| Time Periastron: | ≈ 7 September 2120[1] ±1 month |
| Semimajor: | 42.776 AU |
| Eccentricity: | 0.0374 |
| Period: | 279.78 yr (102,188 d) |
| Mean Motion: | / day |
| Inclination: | 1.2309° |
| Asc Node: | 180.01° |
| Arg Peri: | 78.868° |
| Satellites: | 1 |
| Mean Diameter: | |
| Density: | [2] |
| Abs Magnitude: | 5.7 6.05 |
, provisional designation, is a trans-Neptunian object and binary system from the classical Kuiper belt, located in the outermost region of the Solar System. The cubewano belongs to the cold population and measures approximately 171km (106miles). It was first observed on 10 December 2001, by astronomers at the Mauna Kea Observatory, Hawaii. Its 140-kilometer sized companion was discovered by the Hubble Space Telescope in June 2006.
was discovered on 10 December 2001 by David C. Jewitt, Scott S. Sheppard and Jan Kleyna using 2.2-meter University of Hawaii reflector on Mauna Kea. belongs to the dynamically cold population of the classical Kuiper belt objects, which small orbital eccentricities and inclinations. Their semi-major axes reside mainly in the interval 40–45 AU.
is a binary consisting of two components of approximately equal size. Assuming that both components have the same albedo, the primary is estimated to be about 170 km in diameter. The size of the secondary (satellite) in this case is estimated at about 140 km. The total mass of the system is about 4 kg. The average density of both components is about 1 g/cm3.
| Semi-major axis (km) | Eccentricity | Period (d) | Inclination (°) | |
| 9311 ± 52 | 0.5561 ± 0.0047 | 125.579 ± 0.048 | 41.08 ± 0.22 |
This minor planet was numbered by the Minor Planet Center on 18 May 2019 . As of 2019, it has not been named.
The surfaces of both components of appear to have a neutral color.