| Primary satellite | Secondary satellite |
| Name | Cosmos 1048 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11111 | 29895 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:57 | 2024 Dec 22 16:25 |
| Time of closest approach (UTC) | 2024 Dec 23 16:26:05.179 |
| Minimum distance | 3.226 km |
| Height difference | -1.928 km |
| Relative speed | 14.958 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 18.9°N, 87.2°W |
| Height | 782 km |
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