Asteroid 1999 SF10
1999 SF10 is a near-Earth asteroid roughly 53 m across, about the size of a football pitch. Its closest recorded pass was on 9 Oct 1923 at 2.4 lunar distances.
Estimated size
53 m
about the size of a football pitch
Closest pass on record
2.39 LD
9 Oct 1923
Speed relative to Earth
5.5 km/s
Brightness (H)
24.36
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.