| Primary satellite | Secondary satellite |
| Name | ARIANE 1 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35517 | 35033 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 05:06 | 2024 Dec 20 14:49 |
| Time of closest approach (UTC) | 2024 Dec 25 08:42:42.988 |
| Minimum distance | 4.653 km |
| Height difference | -4.560 km |
| Relative speed | 7.331 km/s |
| Angle between velocity vectors | 58° |
| Geographic position | 63.6°S, 108.3°E |
| Height | 755 km |
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