18643 van Rysselberghe
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Discovery and designation
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| Discovered by | E. W. Elst |
| Discovery site | European Southern Observatory |
| Discovery date | March 1, 1998 |
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Designations
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| MPC designation | 18643 |
| Alternative names[1] | 1998 EK12 |
| Epoch May 14, 2008 | |
| Ap | 2.9667568 |
| Peri | 2.4411124 |
| Eccentricity | 0.0971999 |
| Orbital period | 1624.0249591 |
| Mean anomaly | 293.75551 |
| Inclination | 10.38145 |
| Longitude of ascending node | 27.27261 |
| Argument of peri | 314.65329 |
| Absolute magnitude | 12.9 |
18643 van Rysselberghe (1998 EK12) is a Main-belt Asteroid discovered on March 1, 1998 by E. W. Elst at the European Southern Observatory.

