| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 540 |
| Spacetrack catalog number | 36188 | 6323 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 04:41 | 2024 Dec 22 11:31 |
| Time of closest approach (UTC) | 2024 Dec 29 15:58:36.349 |
| Minimum distance | 1.535 km |
| Height difference | -1.242 km |
| Relative speed | 10.676 km/s |
| Angle between velocity vectors | 91° |
| Geographic position | 72.1°N, 83.4°E |
| Height | 770 km |
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