Asteroid 2020 SW
2020 SW is a near-Earth asteroid roughly 6 m across, about the size of a bus. Its closest recorded pass was on 24 Sept 1977 at 4.6 lunar distances.
Estimated size
6 m
about the size of a bus
Closest pass on record
4.63 LD
24 Sept 1977
Speed relative to Earth
5.8 km/s
Brightness (H)
29.06
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.