| Primary satellite | Secondary satellite |
| Name | SL-08 R/B | Kosmos-1791 |
| Spacetrack catalog number | 27535 | 17066 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2026 Jan 19 05:49 | 2026 Jan 19 06:21 |
| Time of closest approach (UTC) | 2025 Dec 12 18:16:24.263 |
| Minimum distance | 6.828 km |
| Height difference | 1.516 km |
| Relative speed | 6.059 km/s |
| Angle between velocity vectors | 48° |
| Geographic position | 82.3°N, 158.7°E |
| Height | 972 km |
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