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Discovery[1]
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|---|---|
| Discovered by | Eric Walter Elst |
| Discovery site | European Southern Observatory |
| Discovery date | August 3, 1991 |
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Designations
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| MPC designation | 13963 |
| Named after | Euphrates |
| Alternate name(s) | 1991 PT4 |
| Epoch November 30, 2008 | |
| Ap | 4.1882 |
| Peri | 2.4653 |
| Semi-major axis | 3.32674 |
| Eccentricity | 0.258951 |
| Orbital period | 2216.29 |
| Mean anomaly | 284.752 |
| Inclination | 0.935 |
| Longitude of ascending node | 227.48 |
| Argument of peri | 130.141 |
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Physical characteristics
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| Absolute magnitude (H) | 13.7 |
13963 Euphrates (1991 PT4) is an outer main-belt asteroid discovered on August 3, 1991 by Eric Walter Elst at the European Southern Observatory.[1] It is one of very few asteroids located in the 2 : 1 mean motion resonance with Jupiter.[3]
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