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Discovery and designation
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| Discovered by | C.-I. Lagerkvist |
| Discovery site | European Southern Observatory |
| Discovery date | September 2, 1978 |
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Designations
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| MPC designation | 10458 |
| Alternate name(s) | 1978 RM7 |
| Epoch May 14, 2008 | |
| Ap | 2.7942798 |
| Peri | 1.9092144 |
| Eccentricity | 0.1881719 |
| Orbital period | 1317.2990233 |
| Mean anomaly | 148.81900 |
| Inclination | 1.43774 |
| Longitude of ascending node | 238.26566 |
| Argument of peri | 16.23131 |
| Absolute magnitude (H) | 15.0 |
10458 Sfranke (1978 RM7) is a main-belt asteroid discovered on September 2, 1978 by C.-I. Lagerkvist at European Southern Observatory.
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