(24503) Kero Main-belt Asteroid
Discovered on 3 January 2001 by LONEOS at Anderson Mesa.
Johan Kero (b. 1978) is a scientist at the Swedish Institute of Space Physics whose research includes the radar detection of meteors. By studying meteor stream rates and radiant directions, his work contributes toward identifying their asteroid and comet sources.Naming citation (MPC batch dated 2014-07-12), IAU / Minor Planet Center, via NASA/JPL
Where Kero is today
Seen from above the solar system on 2026-10-14: Kero is 2.59 au from the Sun and 3.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 24503 |
| Provisional designation | 2001 AJ42 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.12 km (#8,751 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.226 |
| Absolute magnitude (H) | 13.53 |
| Orbital period | 4.19 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.30 – 2.90 au |
| Eccentricity | 0.114 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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