| Primary satellite | Secondary satellite |
| Name | CSL-04 Deb | COSMOS 2251 DEB |
| Spacetrack catalog number | 26266 | 35993 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:22 | 2024 Dec 18 13:02 |
| Time of closest approach (UTC) | 2024 Dec 26 08:48:14.364 |
| Minimum distance | 1.716 km |
| Height difference | -1.311 km |
| Relative speed | 14.328 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 72.1°N, 178.8°E |
| Height | 709 km |
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