| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35671 | 35020 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 21 19:15 |
| Time of closest approach (UTC) | 2024 Dec 29 20:30:19.231 |
| Minimum distance | 2.633 km |
| Height difference | 1.972 km |
| Relative speed | 13.241 km/s |
| Angle between velocity vectors | 124° |
| Geographic position | 54.1°S, 58.4°W |
| Height | 729 km |
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