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Discovery and designation
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| Discovered by | Felix Aguilar Observatory team |
| Discovery site | El Leoncito Station |
| Discovery date | May 28, 1990 |
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Designations
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| MPC designation | 5289 |
| Alternate name(s) | 1990 KG2 |
| Epoch May 14, 2008 | |
| Ap | 3.2559518 |
| Peri | 2.7665846 |
| Eccentricity | 0.0812560 |
| Orbital period | 1908.6337046 |
| Mean anomaly | 115.04969 |
| Inclination | 10.37977 |
| Longitude of ascending node | 190.12953 |
| Argument of peri | 114.98503 |
| Absolute magnitude (H) | 12.1 |
5289 Niemela (1990 KG2) is a main-belt asteroid discovered on May 28, 1990 by the Felix Aguilar Observatory team at the El Leoncito Station. It is named after the astronomer Virpi Niemelä.
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