20428 (1998 WG20) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1998 WG20 as potentially hazardous because its orbit does not bring it close to Earth.
1998 WG20 orbits the sun every 4,320 days (11.83 years), coming as close as 4.43 AU and reaching as far as 5.95 AU from the sun. 1998 WG20 is about 27.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.
The rotation of 1998 WG20 has been observed. It completes a rotation on its axis every 14.81 hours.
1998 WG20's orbit is 3.44 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 WG20's orbit is determined by observations dating back to Aug. 21, 1984. It was last officially observed on April 2, 2023. The IAU Minor Planet Center records 1,937 observations used to determine its orbit.
The position of 20428 (1998 WG20) 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.