Back in 1998 NASA found this near-earth object. This asteroid is about the size of a small town – one to three kilometers wide.
“The newly discovered [asteroid 1998 OR2 is] large enough to cause global effects if one impacted Earth,” Scientists at Jet Propulsion Laboratories said in a statement in 1998. “[It is] classified as “potentially hazardous objects” because they pass periodically near Earth’s orbit”
On April 30, 2020, this asteroid will come within 3.9 million miles of Earth. It is the closest pass this large asteroid will make for the next 70 years. And a that point, it will be 14,129,000 miles away.
1998 OR2 will be back in 2101. This time within about 5 million miles. Then again in 2182 it will be within about 6.5 million miles.