| Primary satellite | Secondary satellite |
| Name | Kosmos-1104 | FENGYUN 1C DEB |
| Spacetrack catalog number | 11378 | 31753 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Apr 01 19:47 | 2023 Mar 31 01:16 |
| Time of closest approach (UTC) | 2023 Jan 28 09:37:04.568 |
| Minimum distance | 4.714 km |
| Height difference | -4.378 km |
| Relative speed | 14.690 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 68.1°N, 3.1°E |
| Height | 968 km |
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