21599 (1998 WA15) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1998 WA15 as potentially hazardous because its orbit does not bring it close to Earth.
1998 WA15 orbits the sun every 4,340 days (11.88 years), coming as close as 4.59 AU and reaching as far as 5.81 AU from the sun. 1998 WA15 is about 28.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.
The rotation of 1998 WA15 has been observed. It completes a rotation on its axis every 12.65 hours.
1998 WA15's orbit is 3.61 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.
1998 WA15's orbit is determined by observations dating back to March 2, 1990. It was last officially observed on March 2, 2023. The IAU Minor Planet Center records 2,147 observations used to determine its orbit.
The position of 21599 (1998 WA15) 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.