| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1302 Rocket |
| Spacetrack catalog number | 33986 | 12792 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 23 04:09 |
| Time of closest approach (UTC) | 2024 Dec 26 14:11:11.060 |
| Minimum distance | 4.194 km |
| Height difference | 4.120 km |
| Relative speed | 13.433 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 51.4°N, 84.5°E |
| Height | 764 km |
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