2015 RK280 is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2015 RK280 as potentially hazardous because its orbit does not bring it close to Earth.
2015 RK280 orbits the sun every 113,000 days (309.38 years), coming as close as 43.17 AU and reaching as far as 48.33 AU from the sun. Based on its brightness and the way it reflects light, 2015 RK280 is probably between 55.533 to 124.177 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Delaware.
2015 RK280's orbit is 42.20 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 RK280's orbit is determined by observations dating back to July 14, 2015. It was last officially observed on Jan. 3, 2017. The IAU Minor Planet Center records 24 observations used to determine its orbit.
The position of 2015 RK280 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.