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Discovery and designation
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| Discovered by | F. Borngen and L.D.Schmadel |
| Discovery site | Tautenburg |
| Discovery date | September 24, 1992 |
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Designations
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| MPC designation | 120481 |
| Named after | Johann Walter |
| Alternate name(s) | 1992 SP17 |
| Epoch May 14, 2008 | |
| Ap | 2.8766976 |
| Peri | 1.9271868 |
| Eccentricity | 0.1976548 |
| Orbital period | 1359.6973616 |
| Mean anomaly | 113.66082 |
| Inclination | 2.12842 |
| Longitude of ascending node | 337.54770 |
| Argument of peri | 325.28668 |
| Absolute magnitude (H) | 16.9 |
120481 Johannwalter (1992 SP17) is a main-belt asteroid discovered on September 24, 1992 by F. Borngen and L.D.Schmadel at Tautenburg.
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