21447 Yungchieh
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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 | April 18, 1998 |
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Designations
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| MPC designation | 21447 |
| Alternative names[1] | 1998 HZ18 |
| Epoch May 14, 2008 | |
| Ap | 2.8669164 |
| Peri | 1.8600332 |
| Eccentricity | 0.2130091 |
| Orbital period | 1327.1649166 |
| Mean anomaly | 107.25304 |
| Inclination | 1.35545 |
| Longitude of ascending node | 294.35815 |
| Argument of peri | 77.03338 |
| Absolute magnitude | 14.8 |
21447 Yungchieh (1998 HZ18) is a Main-belt Asteroid discovered on April 18, 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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