| Primary satellite | Secondary satellite |
| Name | CSL-04 Debris | deb Kosmos-1275 |
| Spacetrack catalog number | 25733 | 13456 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:21 | 2024 Dec 22 15:59 |
| Time of closest approach (UTC) | 2024 Dec 24 09:29:07.133 |
| Minimum distance | 4.342 km |
| Height difference | -4.330 km |
| Relative speed | 2.829 km/s |
| Angle between velocity vectors | 22° |
| Geographic position | 43.2°N, 6.3°W |
| Height | 847 km |
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