4631 Yabu
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| Discovery and designation | |
|---|---|
| Discovered by | Seiji Ueda and Hiroshi Kaneda |
| Discovery site | Kushiro |
| Discovery date | November 22, 1987 |
| Designations | |
| MPC designation | 4631 |
| Alternative names | 1987 WE1 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 2.5123500 |
| Perihelion | 1.9560820 |
| Eccentricity | 0.1244884 |
| Orbital period | 1219.7930533 |
| Mean anomaly | 22.33895 |
| Inclination | 7.41177 |
| Longitude of ascending node | 25.84008 |
| Argument of perihelion | 51.26920 |
| Physical characteristics | |
| Absolute magnitude (H) | 13.1 |
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4631 Yabu (1987 WE1) is a main-belt asteroid discovered on November 22, 1987 by Seiji Ueda and Hiroshi Kaneda at Kushiro.
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