Stadium-sized asteroid deemed 'potentially hazardous' by NASA, is expected to move 'relatively close' to Earth

The National Aeronautics and Space Administration (NASA) is monitoring a "potentially hazardous" asteroid that is moving past Earth on Tuesday.

NASA told Fox News Digital that the rocky object, which has been named 2024 ON, is 350 meters long by 180 meters wide, which roughly equals 1,150 feet by 590 feet – larger than previous estimates. 

NASA has deemed the asteroid "stadium-sized" and reported it was 621,000 miles away from Earth on Tuesday morning, which is considered relatively close. Davide Farnocchia, a navigation engineer at NASA's Jet Propulsion Laboratory, told Fox News Digital that an asteroid of this size coming this close to Earth only happens every five to ten years.

Farnocchia, who works at the laboratory's Center for Near-Earth Object Studies, said that the last time a large meteor entered the Earth's atmosphere was in Russia in 2013. Earth has not been hit by a meteor of 2024 ON's size since prehistoric times. 

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Although the asteroid is close enough to Earth to be deemed a "potentially hazardous object," Farnocchia said there is no chance the asteroid will hit Earth. The asteroid would need to be within a couple of hundred miles to be a concern.

"We actually check [about the possibility of collision], not just for the immediate future, but also for the next hundred years," the engineer explained. "And there is no possibility of collision in the next hundred years."

The asteroid is one of five that will pass by Earth over the next two days, but the other rocky objects will not come nearly as close as 2024 ON. The four asteroids will be between 1.1 to 3.9 million miles away from Earth, and three of the asteroids measure roughly 51 feet in diameter, which is the size of a house.

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One of the asteroids, named 2013 FW13, measures around 510 feet in diameter and will pass by Earth on Wednesday.

NASA's Asteroid Watch Dashboard tracks "asteroids and comets that will make relatively close approaches to Earth." According to a data table, 2024 ON was traveling at around 8.8 kilometers per second on Tuesday morning, which is nearly 20,000 miles per hour.

"The dashboard displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter," the organization's website explains.

"The dashboard displays the next five Earth approaches to within 4.6 million miles (7.5 million kilometers or 19.5 times the distance to the moon); an object larger than about 150 meters that can approach the Earth to within this distance is termed a potentially hazardous object."