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Discovery and designation
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|---|---|
| Discovered by | C. S. Shoemaker |
| Discovery site | Palomar |
| Discovery date | April 23, 1987 |
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Designations
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| MPC designation | 5999 |
| Alternate name(s) | 1987 HA |
| Epoch May 14, 2008 | |
| Ap | 2.9744223 |
| Peri | 1.5876867 |
| Eccentricity | 0.3039681 |
| Orbital period | 1258.3513458 |
| Mean anomaly | 71.42584 |
| Inclination | 23.19796 |
| Longitude of ascending node | 71.34608 |
| Argument of peri | 71.05198 |
| Absolute magnitude (H) | 14.3 |
5999 Plescia (1987 HA) is a Mars-crossing asteroid discovered on April 23, 1987 by C. S. Shoemaker at Palomar.
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