| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1408 Rocket |
| Spacetrack catalog number | 31877 | 13553 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 21:23 | 2024 Dec 22 14:49 |
| Time of closest approach (UTC) | 2024 Dec 27 15:30:37.548 |
| Minimum distance | 3.421 km |
| Height difference | 3.420 km |
| Relative speed | 15.098 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 58.8°S, 151.6°W |
| Height | 616 km |
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