| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Chang Zheng 4 |
| Spacetrack catalog number | 33986 | 20887 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 22 18:39 |
| Time of closest approach (UTC) | 2024 Dec 27 13:21:52.432 |
| Minimum distance | 4.156 km |
| Height difference | -4.050 km |
| Relative speed | 13.707 km/s |
| Angle between velocity vectors | 132° |
| Geographic position | 73.8°N, 36.3°E |
| Height | 753 km |
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