| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | Alexis |
| Spacetrack catalog number | 35789 | 22638 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 23 05:13 |
| Time of closest approach (UTC) | 2024 Dec 26 18:21:30.945 |
| Minimum distance | 4.705 km |
| Height difference | -1.501 km |
| Relative speed | 12.523 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 54.9°S, 41.2°E |
| Height | 825 km |
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