21739 Annekeschwob
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Discovery and designation
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| Discovered by | Lincoln Laboratory Near-Earth Asteroid Research Team |
| Discovery site | Socorro |
| Discovery date | September 9, 1999 |
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Designations
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| MPC designation | 21739 |
| Alternative names[1] | 1999 RN157 |
| Epoch May 14, 2008 | |
| Ap | 2.4626254 |
| Peri | 2.0974826 |
| Eccentricity | 0.0800733 |
| Orbital period | 1257.5235714 |
| Mean anomaly | 157.69552 |
| Inclination | 3.27254 |
| Longitude of ascending node | 36.34759 |
| Argument of peri | 340.42988 |
| Absolute magnitude | 15.7 |
21739 Annekeschwob (1999 RN157) is a Main-belt Asteroid discovered on September 9, 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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