| Primary satellite | Secondary satellite |
| Name | Cosmos 836 | FENGYUN 1C DEB |
| Spacetrack catalog number | 8923 | 31695 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:14 | 2024 Dec 21 00:40 |
| Time of closest approach (UTC) | 2024 Dec 27 13:03:55.449 |
| Minimum distance | 2.168 km |
| Height difference | -0.495 km |
| Relative speed | 14.602 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 65.5°N, 17.8°W |
| Height | 804 km |
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