Asteroid 2017 SM2
2017 SM2 is a near-Earth asteroid roughly 14 m across, about the size of a bus. Its closest recorded pass was on 20 Sept 1957 at 2.8 lunar distances.
Estimated size
14 m
about the size of a bus
Closest pass on record
2.84 LD
20 Sept 1957
Speed relative to Earth
8.2 km/s
Brightness (H)
27.3
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.