The asteroid called 2013 US3 included in the list of potential threats to Earth, the maximum closer to the Blue planet on April 29. "2018 GE3 was found less than a day before its closest approach", said the report.
Only a handful of scientists at NASA detected the asteroid as little as 21 hours before it crossed Earth by a narrow margin.
SpaceWeather.com reports asteroid 2018 GE3 was discovered by the Catalina Sky Survey on Saturday.
Five years ago, the 10,000-ton, 56-foot Chelyabinsk meteor exploded over Russian Federation with the force of 30 atomic bombs.
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During the 2013 Chelyabinsk event, 1500 people were injured and 7300 buildings damaged by the intense overpressure generated by the shockwave at Earth's surface.
The asteroid, dubbed 2018 GE3, passed by Earth at 2:41 EDT Sunday morning and was estimated to be between 157 to 361 feet in diameter. "A couple of times a week, on average, an asteroid will come closer than the distance to the Moon, but most of those are hunks about the size of a bus or maybe a house".
The asteroid's diameter was estimated to be between 48 and 110 metres, and it was travelling at 106,497kmh.
Had the object, first observed at the Catalina Sky Survey in Arizona on Saturday, moving at a speed of some 66,174 miles per hour (106,497 km/h), hit the Earth, its impact would be hard to imagine. "A 10-meter size object already packs the same energy as a nuclear bomb", Andrew Cheng, who led a 2000-2001 mission for NASA to orbit and land on an asteroid, told Fox News at the time. It has since been labeled 2018 GE3 and it passed by the planet at close range mere hours after detection. However, an asteroid this size is capable of causing some regional damage, depending on various factors such as composition, speed, entry angle, and location of impact. At least three other small space rocks are set to fly past Earth on Tuesday - with the largest measuring 111 feet around.