(15523) Grenville Main-belt Asteroid
Discovered on 9 December 1999 by LONEOS at Anderson Mesa.
Grenville Turner (b. 1936), a geochronologist and meteoriticist, refined the argon-39/argon-40 age-dating technique that provides information on collisional and formation histories of meteorites and minor planets. The name was suggested by E. K. Gibson.Naming citation (20040928/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Grenville is today
Seen from above the solar system on 2026-10-14: Grenville is 2.36 au from the Sun and 2.35 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15523 |
| Provisional designation | 1999 XE151 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.88 km (#10,847 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.355 |
| Rotation period | 5.75 hours |
| Absolute magnitude (H) | 13.48 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.32 – 3.23 au |
| Eccentricity | 0.162 |
| Inclination | 10.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.33 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 December 1999
- (16135) Ivarsson
- (16150) Clinch
- (19731) Tochigi
- (20730) Jorgecarvano
- (20731) Mothediniz
- (22032) Mikekoop
- (25589) Danicamckellar