| Primary satellite | Secondary satellite |
| Name | Cosmos 836 | FENGYUN 1C DEB |
| Spacetrack catalog number | 8923 | 29788 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:14 | 2024 Dec 23 04:10 |
| Time of closest approach (UTC) | 2024 Dec 24 14:31:17.189 |
| Minimum distance | 3.746 km |
| Height difference | 0.098 km |
| Relative speed | 14.897 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 24.1°N, 62.6°W |
| Height | 791 km |
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