| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 34588 | 40605 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:00 | 2024 Dec 22 13:55 |
| Time of closest approach (UTC) | 2024 Dec 29 11:41:14.329 |
| Minimum distance | 1.762 km |
| Height difference | -0.820 km |
| Relative speed | 14.348 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 71.6°S, 158.0°E |
| Height | 779 km |
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