(164207) Cardea Apollo
Discovered on 13 April 2004 by LINEAR at Socorro.
Cardea was the Roman goddess of the hinge. Roman doors hung on pivot hinges. Cardea was one of at least four Roman deities who presided over doorways. The name was selected by participants in the 2024 naming contest run by the WNYC (New York public radio) RadioLab program and the IAU.Naming citation (WGSBN Bull. 5, #1, 19), IAU / Minor Planet Center, via NASA/JPL
Where Cardea is today
Seen from above the solar system on 2026-10-14: Cardea is 0.947 au from the Sun and 0.199 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 164207 |
| Provisional designation | 2004 GU9 |
| Orbit class | Apollo · near-Earth · potentially hazardous |
| Diameter | 0.163 km (#17,440 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.219 |
| Absolute magnitude (H) | 21.19 |
| Orbital period | 1.00 years |
| Semi-major axis | 1.00 au |
| Perihelion – aphelion | 0.865 – 1.14 au |
| Eccentricity | 0.136 |
| Inclination | 13.7° |
| Closest distance between its orbit and Earth's (MOID) | 0.00162 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.