| Primary satellite | Secondary satellite |
| Name | Oscar 11 | COSMOS 2535 |
| Spacetrack catalog number | 14781 | 44421 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 May 16 11:33 | 2025 May 16 12:52 |
| Time of closest approach (UTC) | 2025 May 05 13:06:19.493 |
| Minimum distance | 9.446 km |
| Height difference | -3.892 km |
| Relative speed | 8.698 km/s |
| Angle between velocity vectors | 70° |
| Geographic position | 80.6°N, 22.7°W |
| Height | 607 km |
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