20831 Zhangyi
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Discovery and designation
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| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | October 24, 2000 |
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Designations
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| MPC designation | 20831 |
| Alternative names[1] | 2000 UM47 |
| Epoch May 14, 2008 | |
| Ap | 2.3815115 |
| Peri | 2.1229955 |
| Eccentricity | 0.0573905 |
| Orbital period | 1234.5944899 |
| Mean anomaly | 178.23236 |
| Inclination | 2.06991 |
| Longitude of ascending node | 355.84854 |
| Argument of peri | 311.98636 |
| Absolute magnitude | 15.5 |
20831 Zhangyi (2000 UM47) is a Main-belt Asteroid discovered on October 24, 2000 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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