| 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 13:53:50.056 |
| Minimum distance | 4.701 km |
| Height difference | 1.997 km |
| Relative speed | 15.098 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 58.1°S, 127.0°W |
| Height | 617 km |
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