| Primary satellite | Secondary satellite |
| Name | Cosmos 1048 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11111 | 31664 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:57 | 2024 Dec 19 05:22 |
| Time of closest approach (UTC) | 2024 Dec 26 21:43:13.979 |
| Minimum distance | 4.428 km |
| Height difference | 3.462 km |
| Relative speed | 12.846 km/s |
| Angle between velocity vectors | 118° |
| Geographic position | 74.0°N, 96.7°W |
| Height | 779 km |
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