18743 (1998 YD5) is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 1998 YD5 as potentially hazardous because its orbit does not bring it close to Earth.
1998 YD5 orbits the sun every 2,100 days (5.75 years), coming as close as 2.76 AU and reaching as far as 3.65 AU from the sun. 1998 YD5 is about 16.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Philadelphia.
1998 YD5's orbit is 1.79 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 YD5's orbit is determined by observations dating back to Sept. 6, 1991. It was last officially observed on June 22, 2023. The IAU Minor Planet Center records 2,612 observations used to determine its orbit.
The position of 18743 (1998 YD5) 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.