Asteroid 440212 2004 OB
440212 2004 OB is a near-Earth asteroid roughly 639 m across, about the size of a small town. Its closest recorded pass was on 29 Sept 1967 at 4.3 lunar distances.
Estimated size
639 m
about the size of a small town
Closest pass on record
4.35 LD
29 Sept 1967
Speed relative to Earth
6.6 km/s
Brightness (H)
18.97
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.