Asteroid 1986 DA is a near-Earth asteroid discovered on February 16, 1986. It belongs to the Apollo group of asteroids, which are known for their orbits that cross Earth's path. This asteroid has an estimated diameter of about 1.1 kilometers and is classified as a potentially hazardous object due to its size and proximity to Earth. The orbit of 1986 DA takes it around the Sun every 1.5 years. It has made close approaches to Earth, with its closest encounter occurring in 2000, when it passed within 0.006 astronomical units (about 2,400 kilometers) of our planet.