15398 (1997 UZ23) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1997 UZ23 as potentially hazardous because its orbit does not bring it close to Earth.
1997 UZ23 orbits the sun every 4,250 days (11.64 years), coming as close as 5.00 AU and reaching as far as 5.27 AU from the sun. 1997 UZ23 is about 35.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Los Angeles.
1997 UZ23's orbit is 4.03 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.
1997 UZ23's orbit is determined by observations dating back to April 18, 1955. It was last officially observed on Feb. 28, 2023. The IAU Minor Planet Center records 2,793 observations used to determine its orbit.
The position of 15398 (1997 UZ23) 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.