| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | ATEX |
| Spacetrack catalog number | 34885 | 25615 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:12 | 2024 Dec 22 19:06 |
| Time of closest approach (UTC) | 2024 Dec 27 00:58:52.331 |
| Minimum distance | 3.918 km |
| Height difference | -3.569 km |
| Relative speed | 14.391 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 48.8°N, 30.3°E |
| Height | 743 km |
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