| Primary satellite | Secondary satellite |
| Name | Cosmos 1943 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 19120 | 30251 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 17 15:53 | 2025 Nov 17 19:42 |
| Time of closest approach (UTC) | 2025 Oct 18 01:30:20.558 |
| Minimum distance | 32.380 km |
| Height difference | -5.288 km |
| Relative speed | 12.767 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 71.1°S, 128.9°W |
| Height | 846 km |
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