| Primary satellite | Secondary satellite |
| Name | CZ-6A DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 56631 | 35703 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:57 | 2024 Dec 20 19:48 |
| Time of closest approach (UTC) | 2024 Dec 29 12:48:33.898 |
| Minimum distance | 3.906 km |
| Height difference | -2.734 km |
| Relative speed | 4.240 km/s |
| Angle between velocity vectors | 33° |
| Geographic position | 40.9°N, 99.6°E |
| Height | 666 km |
|