| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1814 |
| Spacetrack catalog number | 35234 | 17303 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 01:06 | 2024 Dec 22 21:01 |
| Time of closest approach (UTC) | 2024 Dec 29 22:20:31.100 |
| Minimum distance | 4.167 km |
| Height difference | -2.329 km |
| Relative speed | 13.187 km/s |
| Angle between velocity vectors | 124° |
| Geographic position | 74.1°N, 169.3°E |
| Height | 779 km |
|