Asteroid 436724 2011 UW158
436724 2011 UW158 is a near-Earth asteroid roughly 401 m across, about the size of a small town. Its closest recorded pass was on 1 Jul 1978 at 4.7 lunar distances.
Estimated size
401 m
about the size of a small town
Closest pass on record
4.68 LD
1 Jul 1978
Speed relative to Earth
6.3 km/s
Brightness (H)
19.98
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.