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Discovery and designation
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| Discovered by | Helin, E. F. |
| Discovery site | Palomar |
| Discovery date | October 1, 1989 |
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Designations
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| MPC designation | 5678 |
| Named after | Lee Alvin DuBridge |
| Alternate name(s) | 1989 TS |
| Epoch May 14, 2008 | |
| Ap | 3.4767797 |
| Peri | 1.9860585 |
| Eccentricity | 0.2728840 |
| Orbital period | 1648.8491720 |
| Mean anomaly | 68.14159 |
| Inclination | 34.09976 |
| Longitude of ascending node | 48.11640 |
| Argument of peri | 297.47635 |
| Geometric albedo | 0.0130 |
| Absolute magnitude (H) | 12.9 |
5678 DuBridge (1989 TS) is a main-belt asteroid discovered on October 1, 1989 by Helin, E. F. at Palomar.
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