| Primary satellite | Secondary satellite |
| Name | COSMOS 1818 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 36938 | 30568 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 12:47 | 2024 Dec 23 09:41 |
| Time of closest approach (UTC) | 2024 Dec 26 11:58:19.020 |
| Minimum distance | 12.677 km |
| Height difference | 2.779 km |
| Relative speed | 13.252 km/s |
| Angle between velocity vectors | 125° |
| Geographic position | 64.3°S, 111.8°W |
| Height | 777 km |
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