| Primary satellite | Secondary satellite |
| Name | Kosmos-1104 | Kosmos-1153 |
| Spacetrack catalog number | 11378 | 11680 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Apr 01 19:47 | 2023 Apr 01 21:37 |
| Time of closest approach (UTC) | 2023 Feb 01 12:22:55.277 |
| Minimum distance | 4.565 km |
| Height difference | -4.384 km |
| Relative speed | 11.815 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 78.1°S, 99.0°W |
| Height | 1020 km |
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