Asteroid 2021 UO1
2021 UO1 is a near-Earth asteroid roughly 10 m across, about the size of a bus. Its closest recorded pass was on 24 Oct 1922 at 4.5 lunar distances.
Estimated size
10 m
about the size of a bus
Closest pass on record
4.55 LD
24 Oct 1922
Speed relative to Earth
18.2 km/s
Brightness (H)
28.03
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.