| Primary satellite | Secondary satellite |
| Name | CSL-04 Debris | COSMOS 2251 DEB |
| Spacetrack catalog number | 25733 | 34303 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:21 | 2024 Dec 23 08:46 |
| Time of closest approach (UTC) | 2024 Dec 25 11:20:33.279 |
| Minimum distance | 4.955 km |
| Height difference | -0.969 km |
| Relative speed | 14.721 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 53.0°S, 54.1°W |
| Height | 846 km |
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