21473 Petesullivan
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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 | April 21, 1998 |
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Designations
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| MPC designation | 21473 |
| Alternative names[1] | 1998 HH99 |
| Epoch May 14, 2008 | |
| Ap | 2.5490650 |
| Peri | 1.9631306 |
| Eccentricity | 0.1298557 |
| Orbital period | 1237.7567378 |
| Mean anomaly | 257.30401 |
| Inclination | 3.21846 |
| Longitude of ascending node | 90.81199 |
| Argument of peri | 232.80138 |
| Absolute magnitude | 14.8 |
21473 Petesullivan (1998 HH99) is a Main-belt Asteroid discovered on April 21, 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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