| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Cosmos 1190 Rocket |
| Spacetrack catalog number | 35453 | 11870 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 19 15:23 | 2024 Dec 22 23:31 |
| Time of closest approach (UTC) | 2024 Dec 24 16:57:15.657 |
| Minimum distance | 3.240 km |
| Height difference | 3.001 km |
| Relative speed | 11.803 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 63.4°S, 177.3°E |
| Height | 788 km |
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