Asteroid
Near-Earth
159399
159399 (1998 UL1)
Where is it now
- Distance from Sun
- 1.568 AU
- True anomaly
- 109.26°
- 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
- 1.527 AU
- Eccentricity
- 0.214
- Inclination
- 41.97°
- Orbital period
- 689.2 days
- Perihelion
- 1.2 AU
- Aphelion
- 1.854 AU
- Longitude of ascending node
- 214.85°
- Argument of periapsis
- 353.26°
- Epoch · J2000
- 2461000.5
Physical properties
- Rotation period
- 4.01 hours
Visual & observation
- Absolute magnitude (H)
- 16.5
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Sources
- orbital elements: JPL SBDB