Geographos

Geographos is one of the earliest discovered Earth-crossing asteroids. It was discovered in September 1951, in a sky survey sponsored by the National Geographic Society. Most Earth-crossing asteroids are thought to be fragments produced by collisions between asteroids in the main belt between Mars and Jupiter, which are later perturbed into Earth-crossing orbits.

Source: https://nasa3d.arc.nasa.gov/detail/geographos