| Primary satellite | Secondary satellite |
| Name | Cosmos 1125 Rocket | SL-24 R/B |
| Spacetrack catalog number | 11511 | 28367 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Nov 14 06:50 | 2025 Nov 13 22:37 |
| Time of closest approach (UTC) | 2025 Oct 14 22:35:44.563 |
| Minimum distance | 9.827 km |
| Height difference | 1.778 km |
| Relative speed | 14.447 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 71.0°S, 63.0°E |
| Height | 785 km |
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