| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 35031 | 40517 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 21 01:13 |
| Time of closest approach (UTC) | 2024 Dec 26 16:32:45.006 |
| Minimum distance | 1.320 km |
| Height difference | 0.102 km |
| Relative speed | 14.493 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 70.4°N, 105.3°W |
| Height | 774 km |
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