Asteroid 2012 SY49
2012 SY49 is on NASA's Sentry list of objects that cannot yet be fully ruled out as future impactors.
Estimated size
23 m
about the size of a house
Closest pass on record
—
Speed relative to Earth
15.6 km/s
Brightness (H)
25.83
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.
No past close approaches in our records.