| Primary satellite | Secondary satellite |
| Name | Kosmos-1308 | CZ-4C DEB |
| Spacetrack catalog number | 12835 | 45484 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:25 | 2024 Dec 22 17:34 |
| Time of closest approach (UTC) | 2024 Dec 28 23:32:32.577 |
| Minimum distance | 0.509 km |
| Height difference | 0.318 km |
| Relative speed | 13.943 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 29.2°S, 54.3°W |
| Height | 981 km |
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