| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Ariane |
| Spacetrack catalog number | 35789 | 17478 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 22 13:11 |
| Time of closest approach (UTC) | 2024 Dec 28 09:05:35.473 |
| Minimum distance | 3.921 km |
| Height difference | -2.776 km |
| Relative speed | 14.757 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 60.3°S, 58.2°W |
| Height | 799 km |
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