| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 35031 | 40582 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 21 23:31 |
| Time of closest approach (UTC) | 2024 Dec 24 10:15:32.195 |
| Minimum distance | 4.417 km |
| Height difference | -1.637 km |
| Relative speed | 8.888 km/s |
| Angle between velocity vectors | 73° |
| Geographic position | 68.6°S, 169.1°E |
| Height | 797 km |
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