| Primary satellite | Secondary satellite |
| Name | Cosmos 1766 | OBJECT K |
| Spacetrack catalog number | 16881 | 57013 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Apr 24 21:08 | 2025 Apr 24 21:27 |
| Time of closest approach (UTC) | 2024 Jun 16 17:22:13.925 |
| Minimum distance | 6045.790 km |
| Height difference | 145.540 km |
| Relative speed | 14.512 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 38.5°S, 51.8°E |
| Height | 482 km |
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