| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-6A DEB |
| Spacetrack catalog number | 35031 | 54912 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 22 21:44 |
| Time of closest approach (UTC) | 2024 Dec 28 19:31:16.354 |
| Minimum distance | 4.769 km |
| Height difference | 2.628 km |
| Relative speed | 13.741 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 73.8°S, 48.8°E |
| Height | 794 km |
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