| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 35433 | 42320 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 02:11 | 2024 Dec 20 21:27 |
| Time of closest approach (UTC) | 2024 Dec 27 02:32:21.851 |
| Minimum distance | 3.615 km |
| Height difference | -2.488 km |
| Relative speed | 13.481 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 74.0°N, 137.6°W |
| Height | 779 km |
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