| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-2 F13 DEB |
| Spacetrack catalog number | 37530 | 40563 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 01:13 | 2024 Dec 20 19:25 |
| Time of closest approach (UTC) | 2024 Dec 28 03:17:47.636 |
| Minimum distance | 4.879 km |
| Height difference | -4.645 km |
| Relative speed | 13.793 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 73.7°N, 150.4°W |
| Height | 780 km |
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