Asteroid
Near-Earth
11398
11398 (1998 YP11)
Where is it now
- Distance from Sun
- 1.432 AU
- True anomaly
- 87.11°
- 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
- 1.721 AU
- Eccentricity
- 0.3891
- Inclination
- 15.02°
- Orbital period
- 824.6 days
- Perihelion
- 1.051 AU
- Aphelion
- 2.391 AU
- Longitude of ascending node
- 144.71°
- Argument of periapsis
- 74.77°
- Epoch · J2000
- 2461000.5
Physical properties
- Mean radius
- 0.66 km
- Rotation period
- 38.6 hours
Visual & observation
- Geometric albedo
- 0.318
- Absolute magnitude (H)
- 16.36
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Sources
- orbital elements: JPL SBDB