| Primary satellite | Secondary satellite |
| Name | Kosmos-1308 | deb Kosmos-1275 |
| Spacetrack catalog number | 12835 | 12670 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:25 | 2024 Dec 23 05:29 |
| Time of closest approach (UTC) | 2024 Dec 26 07:15:22.259 |
| Minimum distance | 1.614 km |
| Height difference | -1.503 km |
| Relative speed | 4.046 km/s |
| Angle between velocity vectors | 32° |
| Geographic position | 82.7°S, 63.5°W |
| Height | 1018 km |
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