| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1943 |
| Spacetrack catalog number | 31357 | 19119 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:11 | 2024 Dec 23 10:23 |
| Time of closest approach (UTC) | 2024 Dec 24 18:47:55.704 |
| Minimum distance | 3.989 km |
| Height difference | -2.157 km |
| Relative speed | 7.661 km/s |
| Angle between velocity vectors | 62° |
| Geographic position | 61.9°N, 145.1°W |
| Height | 854 km |
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