| Primary satellite | Secondary satellite |
| Name | YUBILEINY | Kosmos-1321 |
| Spacetrack catalog number | 32953 | 12976 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:04 | 2024 Dec 22 12:49 |
| Time of closest approach (UTC) | 2024 Dec 26 19:19:12.421 |
| Minimum distance | 4.112 km |
| Height difference | -3.100 km |
| Relative speed | 5.320 km/s |
| Angle between velocity vectors | 44° |
| Geographic position | 73.1°S, 81.4°W |
| Height | 1528 km |
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