| Primary satellite | Secondary satellite |
| Name | DMSP 5D-2 F13 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 40611 | 37973 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 00:04 | 2024 Dec 21 09:34 |
| Time of closest approach (UTC) | 2024 Dec 29 07:18:55.187 |
| Minimum distance | 3.458 km |
| Height difference | -1.354 km |
| Relative speed | 14.501 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 70.2°S, 31.6°W |
| Height | 794 km |
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