| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1943 |
| Spacetrack catalog number | 35462 | 19119 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 22 21:08 |
| Time of closest approach (UTC) | 2024 Dec 27 14:37:09.705 |
| Minimum distance | 4.291 km |
| Height difference | -1.880 km |
| Relative speed | 10.718 km/s |
| Angle between velocity vectors | 92° |
| Geographic position | 64.3°N, 96.6°W |
| Height | 854 km |
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