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Discovery and designation
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| Discovered by | A. Nakamura |
| Discovery site | Kuma Kogen |
| Discovery date | April 7, 1997 |
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Designations
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| MPC designation | 22489 |
| Alternate name(s) | 1997 GR24 |
| Epoch May 14, 2008 | |
| Ap | 3.2034995 |
| Peri | 2.1836909 |
| Eccentricity | 0.1893025 |
| Orbital period | 1614.7189165 |
| Mean anomaly | 105.85210 |
| Inclination | 12.18004 |
| Longitude of ascending node | 195.22355 |
| Argument of peri | 126.18523 |
| Absolute magnitude (H) | 13.8 |
22489 Yanaka (1997 GR24) is a main-belt asteroid discovered on April 7, 1997 by A. Nakamura at Kuma Kogen.
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