Next Five Asteroid Approaches CAR-SIZE APPROXIMATE SIZE 12 Feet 12 FT | M CLOSEST EARTH APPROACH 197,000 Miles 197,000 MI | KM NAME (2021 XC2) DATE Dec 05, 2021 BUS-SIZE APPROXIMATE SIZE 24 Feet 24 FT | M CLOSEST EARTH APPROACH 559,000 Miles 559,000 MI | KM NAME (2021 XF) DATE Dec 05, 2021 HOUSE-SIZE APPROXIMATE SIZE 65 Feet 65 FT | M CLOSEST EARTH APPROACH 2,010,000 Miles 2,010,000 MI | KM NAME (2021 WZ2) DATE Dec 05, 2021 BUS-SIZE APPROXIMATE SIZE 39 Feet 39 FT | M CLOSEST EARTH APPROACH 2,070,000 Miles 2,070,000 MI | KM NAME (2021 WA5) DATE Dec 05, 2021 AIRPLANE-SIZE APPROXIMATE SIZE 97 Feet 97 FT | M CLOSEST EARTH APPROACH 3,950,000 Miles 3,950,000 MI | KM NAME (2021 XU) DATE Dec 05, 2021 About the Asteroid Watch Dashboard The Asteroid Watch dashboard tracks asteroids and comets that will make relatively close approaches to Earth. The dashboard displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter. The object's name is displayed by hovering over its encounter date. Clicking on the encounter date will display a Web page with details about that object. 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. The average distance between Earth and the moon is about 239,000 miles (385,000 kilometers). GET THE LATEST FROM JPL FOLLOW US JPL is a federally funded research and development center managed for NASA by Caltech. MORE FROM JPL Careers Education Science & Technology Acquisitions JPL Store RELATED NASA SITES Basics of Spaceflight Climate Kids Earth / Global Climate Change Exoplanet Exploration Mars Exploration Solar System Exploration Space Place NASA's Eyes Visualization Project Voyager Interstellar Mission NASA Caltech Privacy Image Policy FAQ Feedback Site Managers: Veronica McGregor, Randal Jackson Site Editors: Tony Greicius, Naomi Hartono