| Primary satellite | Secondary satellite |
| Name | DMSP F15 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 25992 | 34546 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:56 | 2024 Dec 23 00:08 |
| Time of closest approach (UTC) | 2024 Dec 24 23:57:09.578 |
| Minimum distance | 1.195 km |
| Height difference | 0.585 km |
| Relative speed | 14.845 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 56.8°N, 118.3°E |
| Height | 752 km |
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