21686 Koschny
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Discovery and designation
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| Discovered by | [[A. Kn�fel]] |
| Discovery site | Drebach |
| Discovery date | September 11, 1999 |
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Designations
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| MPC designation | 21686 |
| Alternative names[1] | 1999 RB36 |
| Epoch May 14, 2008 | |
| Ap | 2.5340280 |
| Peri | 2.0336894 |
| Eccentricity | 0.1095380 |
| Orbital period | 1260.6725121 |
| Mean anomaly | 295.63626 |
| Inclination | 1.72436 |
| Longitude of ascending node | 43.88639 |
| Argument of peri | 185.93445 |
| Absolute magnitude | 16.1 |
21686 Koschny (1999 RB36) is a Main-belt Asteroid discovered on September 11, 1999 by [[A. Kn�fel]] at Drebach.
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