2Km wide asteroid,1998 OR2 pass by Earth on Wednesday.

Artist's concept of near-earth object
Credits-NASA/JPL-caltech

• A large near-Earth asteroid will safely pass by Earth on Wednesday which is 1.5-mile-wide (2-kilometer-wide) in size.
• The asteroid, called 1998 OR2, will make its closest approach at 3:26 IST .
• The asteroid will get no closer than about 3.9 million miles (6.3 million kilometers), passing more than 16 times farther away than the Moon.
• Travels at 31,319 Km/hr 

Asteroid 1998 OR2 was discovered by the Near-Earth Asteroid Tracking program at NASA's Jet Propulsion Laboratory in July 1998, and for the past two decades astronomers have tracked it.
this asteroid has no possibility of impact for at least the next 200 years. Its next close approach to Earth will occur in 2079, when it will pass by closer,only about four times the lunar distance.

Despite this, 1998 OR2 is still categorized as a large "potentially hazardous asteroid" because, over the course of millennia, very slight changes in the asteroid's orbit may cause it to present more of a hazard to Earth than it does now. This is one of the reasons why tracking this asteroid during its close approach.

Previous close approach asteroids:
Close approaches by large asteroids like 1998 OR2 are quite rare. The previous close approach by a large asteroid was made by asteroid Florence in September 2017. That 3-mile-wide (5-kilometer-wide) object zoomed past Earth at 18 lunar distances. On average, we expect asteroids of this size to fly by our planet this close roughly once every five years.

Info : NASA