Asteroid
Near-Earth
142781
142781 (2002 UM11)
Where is it now
- Distance from Sun
- 2.578 AU
- True anomaly
- 202.98°
- 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
- 1.951 AU
- Eccentricity
- 0.3878
- Inclination
- 41.02°
- Orbital period
- 2.73 years
- Perihelion
- 1.194 AU
- Aphelion
- 2.708 AU
- Longitude of ascending node
- 228.97°
- Argument of periapsis
- 229.05°
- Epoch · J2000
- 2461000.5
Physical properties
- Mean radius
- 0.80 km
- Rotation period
- 6.81 hours
Visual & observation
- Geometric albedo
- 0.252
- Absolute magnitude (H)
- 16.14
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Sources
- orbital elements: JPL SBDB