Asteroid 164121 2003 YT1
164121 2003 YT1 is a near-Earth asteroid roughly 1.7 km across, mountain-sized. Its closest recorded pass was on 28 Apr 1997 at 5.2 lunar distances.
Estimated size
1.7 km
mountain-sized
Closest pass on record
5.22 LD
28 Apr 1997
Speed relative to Earth
23.2 km/s
Brightness (H)
16.15
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.