| Primary satellite | Secondary satellite |
| Name | Cosmos 1048 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11111 | 36204 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:57 | 2024 Dec 21 03:16 |
| Time of closest approach (UTC) | 2024 Dec 26 03:04:00.108 |
| Minimum distance | 2.835 km |
| Height difference | 1.137 km |
| Relative speed | 14.901 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 33.4°N, 111.7°E |
| Height | 780 km |
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