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Discovery and designation
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| Discovered by | Mizuno and Furuta |
| Discovery site | Kani |
| Discovery date | August 21, 1990 |
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Designations
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| MPC designation | 4614 |
| Alternate name(s) | 1990 QN |
| Epoch May 14, 2008 | |
| Ap | 2.7282668 |
| Peri | 1.7712754 |
| Eccentricity | 0.2126864 |
| Orbital period | 1232.5538845 |
| Mean anomaly | 94.86392 |
| Inclination | 4.80448 |
| Longitude of ascending node | 179.81917 |
| Argument of peri | 142.95290 |
| Absolute magnitude (H) | 13.3 |
4614 Masamura (1990 QN) is a main-belt asteroid discovered on August 21, 1990 by Mizuno and Furuta at Kani.
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