| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | CSL-04 Debris |
| Spacetrack catalog number | 12658 | 25733 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 23 02:21 |
| Time of closest approach (UTC) | 2024 Dec 25 00:25:09.929 |
| Minimum distance | 2.351 km |
| Height difference | 2.291 km |
| Relative speed | 14.834 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 69.7°N, 83.0°W |
| Height | 849 km |
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