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Discovery and designation
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| Discovered by | N. S. Chernykh |
| Discovery site | Nauchnyj |
| Discovery date | August 13, 1985 |
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Designations
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| MPC designation | 4280 |
| Alternate name(s) | 1985 PF2 |
| Epoch May 14, 2008 | |
| Ap | 2.4008804 |
| Peri | 2.3531720 |
| Eccentricity | 0.0100353 |
| Orbital period | 1338.5955508 |
| Mean anomaly | 1.15460 |
| Inclination | 4.62767 |
| Longitude of ascending node | 51.39565 |
| Argument of peri | 1.67079 |
| Absolute magnitude (H) | 13.2 |
4280 Simonenko (1985 PF2) is a main-belt asteroid discovered on August 13, 1985 by N. S. Chernykh at Nauchnyj.
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