Asteroid
Near-Earth
Potentially hazardous
12538
12538 (1998 OH)
Where is it now
- Distance from Sun
- 1.377 AU
- True anomaly
- 260.82°
- As of
- 29 August 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
Orbital elements
- Semi-major axis
- 1.542 AU
- Eccentricity
- 0.4059
- Inclination
- 24.54°
- Orbital period
- 699.1 days
- Perihelion
- 0.916 AU
- Aphelion
- 2.167 AU
- Longitude of ascending node
- 220.69°
- Argument of periapsis
- 321.79°
- Epoch · J2000
- 2461000.5
Physical properties
- Mean radius
- 0.83 km
- Rotation period
- 2.58 hours
Visual & observation
- Geometric albedo
- 0.232
- Absolute magnitude (H)
- 15.96
- Spectral type
- APO
Discovery & classification
Near-Earth Object
Potentially Hazardous Asteroid