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Discovery and designation
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| Discovered by | E. W. Elst |
| Discovery site | European Southern Observatory |
| Discovery date | September 18, 1998 |
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Designations
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| MPC designation | 14612 |
| Named after | Irtysh River |
| Alternate name(s) | 1998 SG164 |
| Epoch May 14, 2008 | |
| Ap | 3.4564161 |
| Peri | 2.8597471 |
| Eccentricity | 0.0944670 |
| Orbital period | 2049.9036517 |
| Mean anomaly | 67.76294 |
| Inclination | 7.30709 |
| Longitude of ascending node | 141.10769 |
| Argument of peri | 80.72338 |
| Geometric albedo | 0.0333 |
| Absolute magnitude (H) | 12.30 |
14612 Irtish (1998 SG164) is a main-belt asteroid discovered on September 18, 1998 by E. W. Elst at the European Southern Observatory.
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