| Primary satellite | Secondary satellite |
| Name | CSL-04 Deb | Cosmos 858 Rocket |
| Spacetrack catalog number | 26280 | 9444 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:37 | 2024 Dec 23 03:47 |
| Time of closest approach (UTC) | 2024 Dec 25 20:25:33.525 |
| Minimum distance | 4.321 km |
| Height difference | 3.961 km |
| Relative speed | 12.356 km/s |
| Angle between velocity vectors | 112° |
| Geographic position | 73.8°S, 136.1°E |
| Height | 793 km |
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