21398 Zengguoshou
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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 | March 20, 1998 |
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Designations
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| MPC designation | 21398 |
| Alternative names[1] | 1998 FX55 |
| Epoch May 14, 2008 | |
| Ap | 2.6055273 |
| Peri | 1.8606375 |
| Eccentricity | 0.1667851 |
| Orbital period | 1218.8648590 |
| Mean anomaly | 164.12693 |
| Inclination | 3.60433 |
| Longitude of ascending node | 115.75090 |
| Argument of peri | 270.17424 |
| Absolute magnitude | 15.1 |
21398 Zengguoshou (1998 FX55) is a Main-belt Asteroid discovered on March 20, 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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