| Primary satellite | Secondary satellite |
| Name | DMSP 5D-2 F13 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 40516 | 39591 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 19:03 | 2024 Dec 20 07:24 |
| Time of closest approach (UTC) | 2024 Dec 24 13:25:08.768 |
| Minimum distance | 3.930 km |
| Height difference | -2.317 km |
| Relative speed | 14.771 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 60.4°S, 96.4°E |
| Height | 797 km |
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