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Discovery and designation
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| Discovered by | N. Chernykh |
| Discovery site | Nauchnyj |
| Discovery date | August 19, 1977 |
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Designations
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| MPC designation | 3557 |
| Alternate name(s) | 1977 QE1 |
| Epoch May 14, 2008 | |
| Ap | 4.7229304 |
| Peri | 3.3209126 |
| Eccentricity | 0.1742970 |
| Orbital period | 2946.1090370 |
| Mean anomaly | 332.48255 |
| Inclination | 6.02390 |
| Longitude of ascending node | 186.19435 |
| Argument of peri | 124.02748 |
| Absolute magnitude (H) | 10.8 |
3557 Sokolsky (1977 QE1) is an outer main-belt asteroid discovered on August 19, 1977 by N. Chernykh at Nauchnyj.
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