559181 (2015 BX518) is a very large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2015 BX518 as potentially hazardous because its orbit does not bring it close to Earth.
2015 BX518 orbits the sun every 102,000 days (279.26 years), coming as close as 35.19 AU and reaching as far as 50.01 AU from the sun. Based on its brightness and the way it reflects light, 2015 BX518 is probably between 200.704 to 448.787 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of West Virginia.
2015 BX518's orbit is 34.30 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.
2015 BX518's orbit is determined by observations dating back to Jan. 29, 2012. It was last officially observed on May 9, 2021. The IAU Minor Planet Center records 122 observations used to determine its orbit.
The position of 559181 (2015 BX518) 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.