11640 (1997 AT4) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1997 AT4 as potentially hazardous because its orbit does not bring it close to Earth.
1997 AT4 orbits the sun every 1,350 days (3.70 years), coming as close as 2.10 AU and reaching as far as 2.68 AU from the sun. 1997 AT4 is about 3.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.
1997 AT4's orbit is 1.11 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 AT4's orbit is determined by observations dating back to March 2, 1990. It was last officially observed on June 7, 2023. The IAU Minor Planet Center records 2,397 observations used to determine its orbit.
The position of 11640 (1997 AT4) 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.
The above comparison is an artistic rendering that uses available data on the diameter of 1997 AT4 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.