| Primary satellite | Secondary satellite |
| Name | Sep Motor Cover | COSMOS 2251 DEB |
| Spacetrack catalog number | 22804 | 35062 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:21 | 2024 Dec 22 10:56 |
| Time of closest approach (UTC) | 2024 Dec 28 17:21:46.436 |
| Minimum distance | 3.150 km |
| Height difference | 1.783 km |
| Relative speed | 13.866 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 33.4°S, 11.6°W |
| Height | 883 km |
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