Asteroid 2021 TT1
2021 TT1 is on NASA's Sentry list of objects that cannot yet be fully ruled out as future impactors.
Estimated size
19 m
about the size of a house
Closest pass on record
—
Speed relative to Earth
17.1 km/s
Brightness (H)
26.23
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.
No past close approaches in our records.