2019 OU1 will be within 639,000 miles of Earth on August 28. As reported by Fox News, the asteroid's diameter is between 233 ft and 524 ft. NASA data says that the 2019 OU1 travels at a staggering eight miles per second.
Although the asteroid is expected to pass safely, it is closed as "potentially dangerous" due to its size and distance from Earth.
NASA last June produced a report on dealing with asteroids and comets coming within 30 million miles of our planet.
Lindley Johnson, NASA's planetary defense officer, stated that they "already have significant scientific, technical and operational capabilities" but the new plan could "greatly increase our nation's readiness and work with international partners to effectively respond to a new potential asteroid impact is discovered. "
NASA has also awarded a $ 69 million ($ 57 million) contract to SpaceX to help it develop the Double Asteroid Redirection Test (DART) that can divert asteroids away from Earth's orbit.
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Most asteroids in the solar system are in the asteroid belt between Mars and Jupiter.
The total mass of the belt is 22 percent of Plutos.
The upper estimate of The 2014 OU1 diameter would be the 15th list of the tallest buildings in the UK, if it were a skyscraper in the UK.  It would only be 1 ft less than 20 Fenchurch Street in London City.  Manchester's Beetham Tower and Deansgate Square – South Tower would be the only buildings located outside London higher.
There would be 17 buildings, all within Greater London under construction, taking it.