| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1346 Rocket |
| Spacetrack catalog number | 31877 | 13121 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 21:23 | 2024 Dec 23 03:11 |
| Time of closest approach (UTC) | 2024 Dec 26 23:44:44.802 |
| Minimum distance | 4.906 km |
| Height difference | -3.775 km |
| Relative speed | 15.248 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 43.4°S, 71.5°W |
| Height | 524 km |
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