| Primary satellite | Secondary satellite |
| Name | UWE-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 28892 | 35993 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 19:41 | 2024 Dec 18 13:02 |
| Time of closest approach (UTC) | 2024 Dec 25 22:01:46.475 |
| Minimum distance | 1.553 km |
| Height difference | 0.405 km |
| Relative speed | 14.515 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 70.4°S, 96.5°E |
| Height | 700 km |
|