| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31091 | 37280 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 04:29 | 2025 Nov 17 01:46 |
| Time of closest approach (UTC) | 2025 Oct 14 05:54:58.880 |
| Minimum distance | 344.536 km |
| Height difference | 1.242 km |
| Relative speed | 11.908 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 71.4°N, 127.7°E |
| Height | 917 km |
|