| Primary satellite | Secondary satellite |
| Name | Kosmos-1104 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11378 | 38727 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Apr 01 19:47 | 2023 Apr 01 01:41 |
| Time of closest approach (UTC) | 2023 Jan 30 12:31:41.576 |
| Minimum distance | 4.524 km |
| Height difference | 2.420 km |
| Relative speed | 14.694 km/s |
| Angle between velocity vectors | 177° |
| Geographic position | 49.5°N, 109.7°E |
| Height | 982 km |
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