Asteroid
Near-Earth
Potentially hazardous
99248
99248 (2001 KY66)
Where is it now
- Distance from Sun
- 2.365 AU
- True anomaly
- 215.31°
- 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
- 1.866 AU
- Eccentricity
- 0.5077
- Inclination
- 10.61°
- Orbital period
- 2.55 years
- Perihelion
- 0.919 AU
- Aphelion
- 2.814 AU
- Longitude of ascending node
- 284.11°
- Argument of periapsis
- 61.55°
- Epoch · J2000
- 2461000.5
Physical properties
- Mean radius
- 0.56 km
- Rotation period
- 19.7 hours
Visual & observation
- Geometric albedo
- 0.429
- Absolute magnitude (H)
- 16.54
- Spectral type
- APO
Discovery & classification
Near-Earth Object
Potentially Hazardous Asteroid