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Discovery and designation
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| Discovered by | E. F. Helin |
| Discovery site | Palomar |
| Discovery date | June 28, 1990 |
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Designations
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| MPC designation | 5585 |
| Alternate name(s) | 1990 MJ |
| Epoch May 14, 2008 | |
| Ap | 3.7892071 |
| Peri | 1.6381061 |
| Eccentricity | 0.3963473 |
| Orbital period | 1632.7916079 |
| Mean anomaly | 340.64555 |
| Inclination | 28.65071 |
| Longitude of ascending node | 265.14911 |
| Argument of peri | 75.67182 |
| Absolute magnitude (H) | 13.7 |
5585 Parks (1990 MJ) is a Mars-crossing asteroid discovered on June 28, 1990 by E. F. Helin at Palomar.
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