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Discovery and designation
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|---|---|
| Discovered by | Purple Mountain Obs. |
| Discovery site | Nanking |
| Discovery date | October 29, 1981 |
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Designations
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| MPC designation | 5389 |
| Alternate name(s) | 1981 UB10 |
| Epoch May 14, 2008 | |
| Ap | 2.7485180 |
| Peri | 2.0102544 |
| Eccentricity | 0.1551374 |
| Orbital period | 1340.5895473 |
| Mean anomaly | 121.59991 |
| Inclination | 8.09138 |
| Longitude of ascending node | 46.38402 |
| Argument of peri | 312.46777 |
| Absolute magnitude (H) | 13.4 |
5389 Choikaiyau (1981 UB10) is a main-belt asteroid discovered on October 29, 1981 by Purple Mountain Obs. at Nanking.
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