| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1535 Rocket |
| Spacetrack catalog number | 35242 | 14680 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:32 | 2024 Dec 22 22:05 |
| Time of closest approach (UTC) | 2024 Dec 27 21:31:21.328 |
| Minimum distance | 3.789 km |
| Height difference | 2.941 km |
| Relative speed | 12.514 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 79.6°S, 60.4°E |
| Height | 974 km |
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