| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Chang Zheng 4 |
| Spacetrack catalog number | 34022 | 20972 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:37 | 2024 Dec 22 17:57 |
| Time of closest approach (UTC) | 2024 Dec 29 02:34:34.652 |
| Minimum distance | 3.218 km |
| Height difference | -2.931 km |
| Relative speed | 14.844 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 54.1°S, 33.0°E |
| Height | 773 km |
|