NASA said: “As they orbit the Sun, NEOs can occasionally approach close to Earth.
“Note that a ‘close’ passage astronomically can be very far away in human terms: millions or even tens of millions of kilometres.”
NASA’s systems first confirmed Asteroid BP’s orbit on January 18 but the US space agency already has a fairly good idea where the asteroid is headed and how big it is.
Based on NASA’s observations, the space rock measures somewhere in the range of 68.89ft to 154ft (21m to 47m) across.
At the lower end of the estimate, the asteroid is too small to survive the fiery descent through Earth’s atmosphere.