Asteroid
Near-Earth
Potentially hazardous
Geographos
1620 Geographos (1951 RA)
Where is it now
- Distance from Sun
- 1.104 AU
- True anomaly
- 89.77°
- 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
- 1.246 AU
- Eccentricity
- 0.3355
- Inclination
- 13.34°
- Orbital period
- 507.9 days
- Perihelion
- 0.828 AU
- Aphelion
- 1.664 AU
- Longitude of ascending node
- 337.13°
- Argument of periapsis
- 277.03°
- Epoch · J2000
- 2461200.5
Physical properties
- Mean radius
- 1.28 km
- Rotation period
- 5.22 hours
Visual & observation
- Geometric albedo
- 0.29
- Absolute magnitude (H)
- 15.27
- Spectral type
- APO
Discovery & classification
Near-Earth Object
Named
Potentially Hazardous Asteroid