128383 (2004 JW52) is a mid-sized asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 2004 JW52 as potentially hazardous because its orbit does not bring it close to Earth.
2004 JW52 orbits the sun every 4,290 days (11.75 years), coming as close as 5.02 AU and reaching as far as 5.32 AU from the sun. Based on its brightness and the way it reflects light, 2004 JW52 is probably between 6.174 to 13.805 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.
2004 JW52's orbit is 4.02 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.
2004 JW52's orbit is determined by observations dating back to Sept. 16, 1996. It was last officially observed on Jan. 13, 2023. The IAU Minor Planet Center records 421 observations used to determine its orbit.
The position of 128383 (2004 JW52) 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.