555678 (2014 CO23) is a very large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2014 CO23 as potentially hazardous because its orbit does not bring it close to Earth.
2014 CO23 orbits the sun every 105,000 days (287.47 years), coming as close as 36.02 AU and reaching as far as 51.30 AU from the sun. Based on its brightness and the way it reflects light, 2014 CO23 is probably between 226.232 to 505.871 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of South Carolina.
2014 CO23's orbit is 35.00 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.
2014 CO23's orbit is determined by observations dating back to Dec. 14, 2002. It was last officially observed on May 11, 2021. The IAU Minor Planet Center records 246 observations used to determine its orbit.
The position of 555678 (2014 CO23) 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.