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Discovery and designation
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| Discovered by | L. G. Karachkina |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | August 26, 1987 |
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Designations
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| MPC designation | 19127 |
| Named after | Oleg Yefremov |
| Alternate name(s) | 1987 QH10 |
| Epoch May 14, 2008 | |
| Ap | 2.8542998 |
| Peri | 1.4827414 |
| Eccentricity | 0.3162429 |
| Orbital period | 1166.3898921 |
| Mean anomaly | 173.01803 |
| Inclination | 5.22604 |
| Longitude of ascending node | 336.93140 |
| Argument of peri | 4.59007 |
| Absolute magnitude (H) | 15.2 |
19127 Olegefremov (1987 QH10) is a Mars-crossing asteroid discovered on August 26, 1987 by L. G. Karachkina at the Crimean Astrophysical Observatory.
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