21677 Tylerlyon
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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 7, 1999 |
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Designations
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| MPC designation | 21677 |
| Alternative names[1] | 1999 RO23 |
| Epoch May 14, 2008 | |
| Ap | 2.8733259 |
| Peri | 2.1655851 |
| Eccentricity | 0.1404551 |
| Orbital period | 1460.6913947 |
| Mean anomaly | 355.39709 |
| Inclination | 3.62163 |
| Longitude of ascending node | 131.19916 |
| Argument of peri | 306.03813 |
| Absolute magnitude | 15.3 |
21677 Tylerlyon (1999 RO23) is a Main-belt Asteroid discovered on September 7, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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