| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 34588 | 42266 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:00 | 2024 Dec 20 00:57 |
| Time of closest approach (UTC) | 2024 Dec 24 00:41:17.389 |
| Minimum distance | 3.119 km |
| Height difference | -2.985 km |
| Relative speed | 14.909 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 44.9°N, 116.0°E |
| Height | 757 km |
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