2018 CB is a small asteroid by celestial standards; the largest asteroid in our solar system, Vesta, is roughly 326 miles across. (Dwarf planet Ceres is the largest object in the asteroid belt at 590 miles across — roughly the size of Texas. That year, an object roughly 51 feet in diameter exploded above the town while hurtling through Earth's atmosphere, shattering glass and causing hundreds of injuries. The NASA-funded Catalina Sky Survey spotted 2018 CB and another asteroid, 2018 CC, on Feb. 4. Then, on Tuesday (Feb. 6), asteroid 2018 CC made its closest approach, at 114,000 miles, roughly the halfway point between Earth and the moon.

Source: Fox News February 09, 2018 18:33 UTC