| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 18096 | 30728 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:57 | 2024 Dec 21 23:21 |
| Time of closest approach (UTC) | 2024 Dec 29 12:09:37.813 |
| Minimum distance | 4.310 km |
| Height difference | 4.236 km |
| Relative speed | 14.850 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 58.6°N, 80.6°E |
| Height | 767 km |
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