| Primary satellite | Secondary satellite |
| Name | DMSP 5D-2 F13 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 40516 | 37340 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 19:03 | 2024 Dec 20 07:12 |
| Time of closest approach (UTC) | 2024 Dec 29 07:46:18.863 |
| Minimum distance | 4.910 km |
| Height difference | -4.671 km |
| Relative speed | 14.876 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 18.1°S, 168.4°E |
| Height | 795 km |
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