21723 Yinyinwu
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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 | September 9, 1999 |
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Designations
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| MPC designation | 21723 |
| Alternative names[1] | 1999 RT128 |
| Epoch May 14, 2008 | |
| Ap | 3.5286586 |
| Peri | 1.9897448 |
| Eccentricity | 0.2788694 |
| Orbital period | 1674.0699309 |
| Mean anomaly | 323.42497 |
| Inclination | 6.91644 |
| Longitude of ascending node | 183.28140 |
| Argument of peri | 151.69909 |
| Absolute magnitude | 14.1 |
21723 Yinyinwu (1999 RT128) is a Main-belt Asteroid discovered on September 9, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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