| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CSL-04 DEB |
| Spacetrack catalog number | 34022 | 26155 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:37 | 2024 Dec 22 14:27 |
| Time of closest approach (UTC) | 2024 Dec 29 13:13:18.763 |
| Minimum distance | 4.544 km |
| Height difference | 2.848 km |
| Relative speed | 14.435 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 70.7°N, 50.3°W |
| Height | 777 km |
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