| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1328 Rocket |
| Spacetrack catalog number | 31537 | 12988 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 21 14:18 | 2024 Dec 23 02:24 |
| Time of closest approach (UTC) | 2024 Dec 25 18:35:30.783 |
| Minimum distance | 2.737 km |
| Height difference | 2.454 km |
| Relative speed | 13.126 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 80.2°S, 131.1°W |
| Height | 645 km |
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