| Primary satellite | Secondary satellite |
| Name | UWE-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 28892 | 34007 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 19:41 | 2024 Dec 23 06:43 |
| Time of closest approach (UTC) | 2024 Dec 24 16:41:04.996 |
| Minimum distance | 3.893 km |
| Height difference | 3.340 km |
| Relative speed | 14.897 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 55.2°S, 164.8°E |
| Height | 695 km |
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