Asteroid
Near-Earth
16657
16657 (1993 UB)
Where is it now
- Distance from Sun
- 3.315 AU
- True anomaly
- 184.89°
- 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
- 2.277 AU
- Eccentricity
- 0.4607
- Inclination
- 24.94°
- Orbital period
- 3.44 years
- Perihelion
- 1.228 AU
- Aphelion
- 3.326 AU
- Longitude of ascending node
- 31.19°
- Argument of periapsis
- 21.3°
- Epoch · J2000
- 2461000.5
Visual & observation
- Absolute magnitude (H)
- 16.55
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Sources
- orbital elements: JPL SBDB