| Primary satellite | Secondary satellite |
| Name | Cosmos 1048 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11111 | 30675 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:57 | 2024 Dec 23 03:36 |
| Time of closest approach (UTC) | 2024 Dec 27 21:03:17.262 |
| Minimum distance | 4.746 km |
| Height difference | 4.143 km |
| Relative speed | 14.769 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 63.9°N, 138.3°W |
| Height | 780 km |
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