| Primary satellite | Secondary satellite |
| Name | Cosmos 1048 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11111 | 30649 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:57 | 2024 Dec 23 06:03 |
| Time of closest approach (UTC) | 2024 Dec 25 13:52:18.461 |
| Minimum distance | 4.543 km |
| Height difference | 0.790 km |
| Relative speed | 14.620 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 68.9°N, 12.1°W |
| Height | 780 km |
|