| Primary satellite | Secondary satellite |
| Name | YUBILEINY | Kosmos-447 |
| Spacetrack catalog number | 32953 | 5550 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2025 May 14 05:54 | 2025 May 13 16:45 |
| Time of closest approach (UTC) | 2025 Apr 28 00:07:28.861 |
| Minimum distance | 3.608 km |
| Height difference | 3.595 km |
| Relative speed | 11.575 km/s |
| Angle between velocity vectors | 109° |
| Geographic position | 69.0°N, 55.5°E |
| Height | 1499 km |
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