| Primary satellite | Secondary satellite |
| Name | SL-8 R/B | Kosmos-1104 |
| Spacetrack catalog number | 36520 | 11378 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 05:12 | 2024 Dec 22 19:56 |
| Time of closest approach (UTC) | 2024 Dec 26 12:19:16.104 |
| Minimum distance | 0.640 km |
| Height difference | 0.142 km |
| Relative speed | 14.615 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 14.4°S, 177.2°E |
| Height | 979 km |
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