| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | TATIANA 2 |
| Spacetrack catalog number | 34814 | 35868 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:55 | 2024 Dec 23 11:40 |
| Time of closest approach (UTC) | 2024 Dec 28 11:45:04.892 |
| Minimum distance | 10.708 km |
| Height difference | 2.910 km |
| Relative speed | 8.843 km/s |
| Angle between velocity vectors | 73° |
| Geographic position | 68.5°N, 25.1°E |
| Height | 818 km |
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