385458 (2003 SP317) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2003 SP317 as potentially hazardous because its orbit does not bring it close to Earth.
2003 SP317 orbits the sun every 115,000 days (314.85 years), coming as close as 38.31 AU and reaching as far as 54.51 AU from the sun. Based on its brightness and the way it reflects light, 2003 SP317 is probably between 95.621 to 213.816 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Connecticut.
The rotation of 2003 SP317 has been observed. It completes a rotation on its axis every 12.45 hours.
2003 SP317's orbit is 37.30 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.
2003 SP317's orbit is determined by observations dating back to Sept. 25, 2003. It was last officially observed on Oct. 3, 2021. The IAU Minor Planet Center records 79 observations used to determine its orbit.
The position of 385458 (2003 SP317) 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.