| Primary satellite | Secondary satellite |
| Name | Kosmos-1636 | YUBILEINY |
| Spacetrack catalog number | 15618 | 32953 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 23 10:19 | 2024 Dec 23 14:27 |
| Time of closest approach (UTC) | 2024 Dec 27 17:08:53.816 |
| Minimum distance | 3.616 km |
| Height difference | 3.425 km |
| Relative speed | 13.834 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 33.6°N, 19.8°W |
| Height | 1478 km |
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