Asteroid 12538 1998 OH
12538 1998 OH is a near-Earth asteroid roughly 1.7 km across, mountain-sized. Its closest recorded pass was on 4 May 1975 at 14.5 lunar distances.
Estimated size
1.7 km
mountain-sized
Closest pass on record
14.48 LD
4 May 1975
Speed relative to Earth
16.1 km/s
Brightness (H)
15.96
Lower means larger
Past close approaches
Recorded passes within about 20 lunar distances since 1900.