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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 | 22840 |
| Alternate name(s) | 1999 RB98 |
| Epoch July 23, 2010 | |
| Ap | 2.8026833 |
| Peri | 2.7757473 |
| Semi-major axis | 2.7892153 |
| Eccentricity | 0.0048286 |
| Orbital period | 1701.4589822 |
| Mean anomaly | 24.08525 |
| Inclination | 5.96142 |
| Longitude of ascending node | 4.18283 |
| Argument of peri | 94.74992 |
| Absolute magnitude (H) | 15.0 |
22840 Villarreal is a main belt asteroid with an orbital period of 1701.4589822 days (4.66 years).[1]
The asteroid was discovered on September 7, 1999, by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro, New Mexico.
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