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2019 OK
open-in-new
<p>2019 OK is a <a href="/facts/Near-Earth_asteroid/UwnPRnSN">near-Earth asteroid</a> noted for its sudden, surprise discovery on the day before it <a href="/facts/Flyby_(spaceflight)/BtJe76fP">flew by</a> at approximately 70,000 km (43,000 mi) in 2019. The object's size is estimated at 57 to 130 metres (187 to 426 ft) across, the closest asteroid of such size discovered in 2019. It is uncommon for asteroids of this moderately large size to pass within 100,000 km (62,000 mi) of Earth. </p>