| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-6A DEB |
| Spacetrack catalog number | 34588 | 54917 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:00 | 2024 Dec 22 14:56 |
| Time of closest approach (UTC) | 2024 Dec 28 08:58:45.392 |
| Minimum distance | 3.758 km |
| Height difference | 3.644 km |
| Relative speed | 14.646 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 66.2°S, 176.9°W |
| Height | 780 km |
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