| Primary satellite | Secondary satellite |
| Name | YUBILEINY | Kosmos-2126 |
| Spacetrack catalog number | 32953 | 21101 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2025 Apr 29 04:43 | 2025 Apr 28 21:02 |
| Time of closest approach (UTC) | 2024 Jul 18 09:24:24.856 |
| Minimum distance | 365.120 km |
| Height difference | 2.396 km |
| Relative speed | 13.258 km/s |
| Angle between velocity vectors | 137° |
| Geographic position | 59.8°N, 5.3°E |
| Height | 1489 km |
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