523649) 2010 XZ78

523649 (2010 XZ78) is a mid-sized asteroid with an orbit between Jupiter and Neptune. NASA JPL has not classified 2010 XZ78 as potentially hazardous because its orbit does not bring it close to Earth. 2010 XZ78 orbits the sun every 7,730 days (21.16 years), coming as close as 5.40 AU and reaching as far as 9.90 AU from the sun. Based on its brightness and the way it reflects light, 2010 XZ78 is probably between 6.864 to 15.348 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.