21990 Garretyazzie
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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 | December 6, 1999 |
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Designations
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| MPC designation | 21990 |
| Alternative names[1] | 1999 XH22 |
| Epoch May 14, 2008 | |
| Ap | 3.2271118 |
| Peri | 2.6084832 |
| Eccentricity | 0.1060095 |
| Orbital period | 1820.4600596 |
| Mean anomaly | 315.21460 |
| Inclination | 2.55940 |
| Longitude of ascending node | 149.07140 |
| Argument of peri | 187.26167 |
| Absolute magnitude | 14.1 |
21990 Garretyazzie (1999 XH22) is a Main-belt Asteroid discovered on December 6, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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