21454 Chernoby
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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 | April 20, 1998 |
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Designations
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| MPC designation | 21454 |
| Alternative names[1] | 1998 HE40 |
| Epoch May 14, 2008 | |
| Ap | 3.4221881 |
| Peri | 2.9167991 |
| Eccentricity | 0.0797271 |
| Orbital period | 2061.0248858 |
| Mean anomaly | 27.30277 |
| Inclination | 9.89746 |
| Longitude of ascending node | 32.94226 |
| Argument of peri | 56.83934 |
| Absolute magnitude | 13.2 |
21454 Chernoby (1998 HE40) is a Main-belt Asteroid discovered on April 20, 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
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