| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 18096 | 31929 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:57 | 2024 Dec 23 03:32 |
| Time of closest approach (UTC) | 2024 Dec 23 18:16:14.247 |
| Minimum distance | 3.233 km |
| Height difference | 3.220 km |
| Relative speed | 11.786 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 73.4°S, 140.9°E |
| Height | 807 km |
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