| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 2251 Rocket |
| Spacetrack catalog number | 30284 | 22676 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:15 | 2024 Dec 23 13:44 |
| Time of closest approach (UTC) | 2024 Dec 26 04:03:43.835 |
| Minimum distance | 3.077 km |
| Height difference | -1.704 km |
| Relative speed | 13.473 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 74.0°N, 120.4°E |
| Height | 803 km |
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