| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SL-16 DEB |
| Spacetrack catalog number | 34814 | 39302 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:55 | 2024 Dec 18 12:39 |
| Time of closest approach (UTC) | 2024 Dec 29 19:57:52.062 |
| Minimum distance | 6.177 km |
| Height difference | -0.848 km |
| Relative speed | 14.261 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 15.0°N, 26.9°E |
| Height | 749 km |
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