| Primary satellite | Secondary satellite |
| Name | CZ-6A DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 56631 | 35979 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:57 | 2024 Dec 20 21:13 |
| Time of closest approach (UTC) | 2024 Dec 27 10:22:40.413 |
| Minimum distance | 1.812 km |
| Height difference | 1.811 km |
| Relative speed | 15.004 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 60.7°N, 20.9°W |
| Height | 627 km |
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