| Primary satellite | Secondary satellite |
| Name | Cosmos 2266 Rocket | SL-8 R/B |
| Spacetrack catalog number | 22889 | 36520 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Jun 19 14:37 | 2025 Jun 19 21:16 |
| Time of closest approach (UTC) | 2025 May 14 15:34:43.771 |
| Minimum distance | 2.736 km |
| Height difference | 2.077 km |
| Relative speed | 14.189 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 60.4°S, 54.4°E |
| Height | 1029 km |
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