| Primary satellite | Secondary satellite |
| Name | Uosat 5 | COSMOS 2251 DEB |
| Spacetrack catalog number | 21578 | 35668 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:56 | 2024 Dec 19 21:17 |
| Time of closest approach (UTC) | 2024 Dec 24 01:01:26.526 |
| Minimum distance | 1.497 km |
| Height difference | 0.239 km |
| Relative speed | 13.627 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 73.9°S, 30.8°W |
| Height | 730 km |
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