42301 (2001 UR163) is a dwarf planet whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2001 UR163 as potentially hazardous because its orbit does not bring it close to Earth.
2001 UR163 orbits the sun every 137,000 days (375.09 years), coming as close as 37.31 AU and reaching as far as 66.67 AU from the sun. Based on its brightness and the way it reflects light, 2001 UR163 is probably between 391.341 to 875.064 kilometers in diameter, making it one of the largest objects, very roughly comparable in size to Great Britain.
2001 UR163's orbit is 36.30 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.
Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.
2001 UR163's orbit is determined by observations dating back to July 27, 1982. It was last officially observed on Dec. 14, 2022. The IAU Minor Planet Center records 383 observations used to determine its orbit.
The position of 42301 (2001 UR163) is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.