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Discovery and designation
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| Discovered by | Chernykh, N. S. |
| Discovery site | Nauchnyj |
| Discovery date | September 24, 1990 |
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Designations
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| MPC designation | 5781 |
| Alternate name(s) | 1990 SM28 |
| Epoch May 14, 2008 | |
| Ap | 2.2183049 |
| Peri | 2.0550083 |
| Eccentricity | 0.0382131 |
| Orbital period | 1140.7763668 |
| Mean anomaly | 184.50132 |
| Inclination | 2.71036 |
| Longitude of ascending node | 259.22124 |
| Argument of peri | 170.14478 |
| Absolute magnitude (H) | 12.9 |
5781 Barkhatova (1990 SM28) is a main-belt asteroid discovered on September 24, 1990 by Chernykh, N. S. at Nauchnyj.
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