| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Chang Zheng 4 |
| Spacetrack catalog number | 33905 | 20852 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 23 08:45 |
| Time of closest approach (UTC) | 2024 Dec 23 20:54:09.993 |
| Minimum distance | 2.085 km |
| Height difference | -1.978 km |
| Relative speed | 10.877 km/s |
| Angle between velocity vectors | 94° |
| Geographic position | 72.2°N, 92.3°W |
| Height | 820 km |
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