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Discovery and designation
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| Discovered by | T. M. Smirnova |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | December 14, 1971 |
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Designations
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| MPC designation | 2122 |
| Alternate name(s) | 1971 XB |
| Epoch May 14, 2008 | |
| Ap | 2.4694004 |
| Peri | 2.3333126 |
| Eccentricity | 0.0283356 |
| Orbital period | 1359.2000685 |
| Mean anomaly | 17.50129 |
| Inclination | 7.89447 |
| Longitude of ascending node | 105.56884 |
| Argument of peri | 236.40069 |
| Absolute magnitude (H) | 12.1 |
2122 Pyatiletka (1971 XB) is a main-belt asteroid discovered on December 14, 1971, by T. M. Smirnova at the Crimean Astrophysical Observatory. It is named in honor of Five-Year Plans of the USSR.[1]
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