| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1818 DEB |
| Spacetrack catalog number | 31071 | 34174 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 08:56 | 2024 Dec 18 01:38 |
| Time of closest approach (UTC) | 2024 Dec 26 11:52:36.071 |
| Minimum distance | 3.500 km |
| Height difference | -1.278 km |
| Relative speed | 14.395 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 54.1°N, 120.4°E |
| Height | 779 km |
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