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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 | July 14, 1999 |
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Designations
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| MPC designation | 20482 |
| Alternate name(s) | 1999 NH40 |
| Epoch May 14, 2008 | |
| Ap | 2.8324415 |
| Peri | 2.0513991 |
| Eccentricity | 0.1599238 |
| Orbital period | 1393.7845571 |
| Mean anomaly | 169.78863 |
| Inclination | 3.39441 |
| Longitude of ascending node | 105.19939 |
| Argument of peri | 128.32394 |
| Absolute magnitude (H) | 15.3 |
20482 Dustinshea (1999 NH40) is a main-belt asteroid discovered on July 14, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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