| Primary satellite | Secondary satellite |
| Name | deb Kosmos-407 | COSMOS 2251 DEB |
| Spacetrack catalog number | 13497 | 35716 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:59 | 2024 Dec 19 20:39 |
| Time of closest approach (UTC) | 2024 Dec 28 00:48:22.590 |
| Minimum distance | 3.885 km |
| Height difference | -3.838 km |
| Relative speed | 14.247 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 30.7°N, 155.8°W |
| Height | 690 km |
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