This project uses datasets provided by one of NASA's open source APIs in order to map out asteroids at their closest approach to earth on their regular orbit around our sun
as·ter·oid
/ˈastəˌroid/
noun: asteroid; plural noun: asteroids.
a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles (1,000 km) across (Ceres) to dust particles, are found (as the asteroid belt ) especially between the orbits of Mars and Jupiter, though some have more eccentric orbits, and a few pass close to the earth or enter the atmosphere as meteors.