| Primary satellite | Secondary satellite |
| Name | Kosmos-1104 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11378 | 32179 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Apr 01 19:47 | 2023 Apr 01 15:10 |
| Time of closest approach (UTC) | 2023 Feb 01 08:02:15.037 |
| Minimum distance | 35.112 km |
| Height difference | -0.177 km |
| Relative speed | 14.651 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 74.2°N, 156.4°E |
| Height | 979 km |
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