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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 | 22819 |
| Alternate name(s) | 1999 RY26 |
| Epoch May 14, 2008 | |
| Ap | 2.4266961 |
| Peri | 2.1948349 |
| Eccentricity | 0.0501698 |
| Orbital period | 1283.0165144 |
| Mean anomaly | 138.38809 |
| Inclination | 2.43906 |
| Longitude of ascending node | 43.21717 |
| Argument of peri | 350.92883 |
| Absolute magnitude (H) | 15.6 |
22819 Davidtao (1999 RY26) 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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