| Primary satellite | Secondary satellite |
| Name | ARIANE 1 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 39107 | 33761 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 20:48 | 2024 Dec 23 07:21 |
| Time of closest approach (UTC) | 2024 Dec 29 21:46:43.746 |
| Minimum distance | 1.371 km |
| Height difference | 0.859 km |
| Relative speed | 14.150 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 73.1°N, 179.5°W |
| Height | 769 km |
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