| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35671 | 34726 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 22 21:16 |
| Time of closest approach (UTC) | 2024 Dec 23 21:38:40.058 |
| Minimum distance | 4.362 km |
| Height difference | 2.912 km |
| Relative speed | 9.471 km/s |
| Angle between velocity vectors | 78° |
| Geographic position | 69.3°S, 166.3°W |
| Height | 732 km |
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